Recent Comet Brightness Estimates
Selected recent magnitude estimates (often preliminary values!), as reported to the IAU Circulars and International Comet Quarterly for currently-observable comets are given below. NOTE: in 1997, we began adding select magnitudes from fainter comets from CCD astrometry reported to the Minor Planet Center, to make the list of comets below pretty complete for observable comets seen in the last couple of months, for the convenience of observers/readers who wish to know the most recent magnitude information on fainter comets. (Definitions of the "magnitude" and other terms regarding comets are available.)
- Contributors of observations for this Web page should read this first. (Contributors of web data are expected also to contribute complete information for ICQ archiving.)
- Further Helpful Hints
NOTE that many values below should be considered preliminary, and as such the data below (and that published on IAU Circulars) should not be used in any serious analyses; furthermore, many of the best comet observers do not have their data listed below (and there is a huge difference in the quality of observations from one observer to another -- both visually and via CCD). Indeed, it is not uncommon that photometric data listed below are actually withdrawn by observers (or the ICQ Editor) due to problems, and sometimes substantial changes are made to the magnitudes before publication in the ICQ. The final, complete form of the data in the published ICQ (or in the electronic ICQ archive of photometric cometary observations) is what should be used. The data below are meant more as an informal guide to current behavior of observable comets. (In general, the data below will be kept on this page only until the detailed tabulated complements to the observations are published in the ICQ -- i.e., quarterly -- at which time they will be eliminated from this page. There is currently no plan to make ICQ-published data available on the Web, but such data are available to interested researchers upon request via e-mail, by individual comet.)
We now have a "Descriptive Information" page, reporting interesting information to supplement the magnitudes below.
At the end of the year 2000, we deleted numerals following comet names on these ICQ webpages and in the ICQ printed pages. With there being no longer a comet named "Shoemaker 2" (leaving "Shoemaker 3" and "Shoemaker 4"), the illogical and unnecessary existence of numerals following comet names makes the start of a new millennium a good time to cease using those numerals. Especially with the wonderful numbering system for short-period comets in place since 1995, whereby comets of two or more apparitions have been assigned permanent numbers, it is redundant to have numerals after a comet's name, and short-period comets of a single apparition have not gotten suffixed numerals since the change to the new designation system in 1995 anyway; for 1-apparition short-period comets discovered prior to 1995, the ICQ will begin using both new-style and old-style designations to help in the unambiguous titling of a specific comet. Indeed, as Brian Marsden noted in the January 1995 issue of the ICQ, history shows great inconsistency and problems regarding the addition of numerals to short-period comet names, and it makes sense to phase them out completely. Some people will prefer to continue using the suffixed name numerals, but we trust that there will be no ambiguity to the new ICQ policy for readers. Most observers appear to be quite comfortable with the new designation system (particularly regarding the permanently-numbered short-period comets), so this policy should not present problems for most people. The old suffixed numerals of comet names are still visible in the list of permanently numbered comets.
An asterisk (*) below denotes that correction was made in the magnitude estimate for atmospheric extinction, while a percent sign (%) incidates that magnitudes of very red comparison stars were corrected to visual magnitudes before use. A colon (:) after the magnitude estimate indicates that the estimate is approximate (uncertainty greater than +/- 0.3 mag); likewise, an ampersand (&) before the coma-diameter estimate indicates that the estimate is approximate. Below are given the Universal Time (UT) date, to 0.01 day, now in reverse chronological order ; the total magnitude estimate; the coma diameter (usually in minutes of arc), with a preceding plus (+) sign for 'artificial' coma diameters employed in CCD photometry (and an exclamation mark for limiting magnitude estimates when the comet is not seen, to denote the size of the defocused comparison-star images); the observer and observing location; and the instrument USED FOR THE MAGNITUDE ESTIMATE (with the size of the instrument indicating the size of the aperture --- i.e., the primary lens or mirror --- in centimeters or meters). In the listing below, if a comet is not seen and a limiting (stellar) magnitude given, a left bracket, [, appears before the magnitude value. A letter 'z' after a coma diameter indicates that it may have been made with a different instrument.
ALERT! Due to excessive spam-e-mailing, it is imperative that legitimate e-mail with observations sent for possible posting here should ONLY be sent in plain-ASCII text and NEVER be sent with html encoding. Also, images should only be sent in e-mails *separate* from plain-text observations, and they should ONLY be sent after first contacting us at ICQ@CFA.HARVARD.EDU to inquire if we'd like to receive images (some select photographers who routinely send high-quality images to the ICQ have a long-time exemption from this rule). Our anti-spam software automatically deletes e-mail with html-encoding and images or MIME-encoding (or anything that does not appear as plain text), so your e-mail may never reach us if you do not follow these guidelines. [11/27/07]
NOTE: Please do not send e-mail with html coding or MIME encoded (or any other encoded way)! Please only send e-mail as straight or plain ASCII text. When sending data for inclusion in this webpage and/or on the IAU Circulars, please send data as listed below, EXCEPT give them chronologically (not in reverse chronological order as given below) and please also give the month on each line of observation (rather than blanks as shown below for second and third observations in the same month). Be sure to give diacritical marks in TeX form (described elsewhere in these webpages). Please send observations daily only for urgent objects -- comets in outburst, comets close to the earth, or novae/variable stars that are rapidly changing their brightness (for IAUCs). Routine comet observational data should be sent only once every week or two, as daily e-mail from dozens of observers can be very difficult to deal with. Please put "CCD [or visual] comet photometry for webpage [or ICQ]" in subject heading.
COMETS LISTED BELOW BY DESIGNATION (unnumbered comets first, numbered comets second). Jump directly to comet: C/2007 N3 (Lulin), or 29P/Schwassmann-Wachmann.
NOTE: when a comet is large in size, as comet 17P has been in Nov. 2007, normal binoculars cannot defocus enough to produce proper magnitude estimates, leading to values that are too faint; special instruments are needed for comets larger than about 10' or 15' in size (such instruments include binoculars with detached eyepieces, or 1x monoculars constructed from two binocular objective lenses).
COMET C/2005 L3 (McNaught) Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Aug. 1.17, 14.7, 0'.5 (D. Chestnov, remotely from near Mayhill, NM, U.S.A., 0.21-m refractor + CCD; moonlight); June 21.28, 14.7, 0'.7 (S. Shurpakov, remotely from near Mayhill, NM, U.S.A., 0.10-m refractor + CCD + R_c filter); 21.01, 14.0, 0'.5 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 17.23, 14.7, 1'.0 (D. Chestnov and A. Novichonok, remotely from near Mayhill, NM, U.S.A., 0.18-m refractor + CCD); 13.91, 14.0, 1'.2 (J. Srba, Mikuluvka, Czech Republic, 6.3-cm reflector + CCD + R filter); 13.87, 15.0, 0'.3 (T. Scarmato, Calabria, Italy, 25-cm reflector + CCD); 12.90, 15.2, 0'.3 (T. Scarmato, Calabria, Italy, 25-cm reflector + CCD); 5.88, 15.1, 0'.3 (T. Scarmato, Calabria, Italy, 25-cm reflector + CCD); 1.06, 13.7, 0'.7 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); May 27.94, 14.2, 0'.68 (S. Shurpakov, Baran', Belarus, 0.19-m reflector + CCD); COMET C/2006 OF2 (Broughton) Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 May 26.94, 12.5, 1'.0 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); COMET C/2006 Q1 (McNaught) Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Sep. 10.78, 15.4, 1' (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD); Aug. 27.87, 14.3, 0'.7 (J. Srba, Mikuluvka, Czech Republic, 6.3-cm reflector + CCD); 21.82, 16.8, 1' (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD); 20.14, 14.6, 0'.56 (S. Shurpakov, remotely from near Mayhill, NM, U.S.A., 0.35-m reflector + CCD); 13.88, 14.2, 1'.0 (J. Srba, Mikuluvka, Czech Republic, 6.3-cm reflector + CCD); July 28.87, 16.3, 0'.8 (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD); 24.19, 13.3, 0'.8 (D. Chestnov, remotely from near Mayhill, NM, U.S.A., 0.21-m refractor + CCD); 12.22, 12.9, 0'.8 (D. Chestnov, remotely from near Mayhill, NM, U.S.A., 0.18-m reflector + CCD; moonlight); 9.21, 15.3, 0'.91 (D. Chestnov, remotely from near Mayhill, NM, U.S.A., 0.21-m refractor + CCD); 6.26, 13.0, 0'.8 (D. Chestnov, remotely from near Mayhill, NM, U.S.A., 0.36-m reflector + CCD; moonlight); 1.23, 15.6, 0'.25 (D. Chestnov, remotely from near Mayhill, NM, U.S.A., 0.18-m refractor + CCD); June 21.26, 15.9, 0'.93 (S. Shurpakov, remotely from near Mayhill, NM, U.S.A., 0.10-m refractor + CCD + R_c filter); 17.88, 14.7, 1' (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD); 13.93, 14.3, 1'.3 (J. Srba, Mikuluvka, Czech Republic, 6.3-cm reflector + CCD + R filter); 13.89, 14.7, 0'.5 (T. Scarmato, Calabria, Italy, 25-cm reflector + CCD); 12.92, 12.8, 0'.5 (T. Scarmato, Calabria, Italy, 25-cm reflector + CCD); 5.91, 14.7, 0'.5 (T. Scarmato, Calabria, Italy, 25-cm reflector + CCD); 1.11, 13.4, 0'.5 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); May 27.92, 12.4, 1' (S. Shurpakov, Baran', Belarus, 0.19-m reflector + CCD); 26.91, 14.7, 1' (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD); COMET C/2006 S3 (LONEOS) Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Aug. 27.92, [15.0, -- (J. Srba, Mikuluvka, Czech Republic, 6.3-cm reflector + CCD); COMET C/2006 U6 (Spacewatch) Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Mar. 22.00, 14.7, 0'.3 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); COMET C/2006 W3 (Christensen) Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Dec. 4.77, 9.4, 5' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); Nov. 25.69, 10.4, 2'.5 (M. Lehky, Hradec Kralove, Czech Republic, 25x100 binoculars); 21.43, 9.4, 2'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 20.46, 10.1, 2'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 19.69, 10.3, 3' (M. Lehky, Hradec Kralove, Czech Republic, 25x100 binoculars); 18.79, 9.2, 5' (J. J. Gonzalez, Asturias, Spain, 0.20-m reflector); 17.71, 10.6, 1' (T. Scarmato, Calabria, Italy, 25-cm reflector + CCD + R_c filter); 16.40, 10.0, 3' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 15.40, 9.3, 4'.2 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 13.96, 9.7, 4' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 12.42, 9.6, 4'.8 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 11.40, 9.8, 4'.8 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 10.42, 9.6, 5' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 9.39, 10.0, 3'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 8.82, 9.3, 4' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 3.40, 9.8, 3' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 1.39, 9.5, 4' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); Oct. 31.40, 9.3, 2' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 29.96, 9.6, 4' (M. Goiato, Aracatuba, Brazil, 22-cm reflector; moonlight); 23.96, 9.6, 4' (M. Goiato, Aracatuba, Brazil, 22-cm reflector; moonlight); 23.79, 9.5, 3' (A. Diepvens, Balen, Belgium, 0.20-m refractor); 21.02, 9.6, 6' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 20.44, 9.5, 5' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 19.74, 9.4, 3' (U. Pilz, Leipzig, Germany, 32-cm reflector); 18.96, 9.5, 5' (M. Goiato, Aracatuba, Brazil, 22-cm reflector; clouds); 18.40, 9.1, 2'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 17.80, 9.4, 3' (A. Diepvens, Balen, Belgium, 0.20-m refractor); 17.77, 9.1, 5' (B. H. Granslo, Haagaar, Eina, Norway, 0.10-m refractor); 17.42, 9.7, 5' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 16.40, 9.2, 4' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 15.94, 9.4, 5' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars; clouds); 14.81, 9.0, 4' (B. H. Granslo, Fjellhamar, Norway, 0.20-m reflector); 14.77, 9.2, 4' (M. Meyer, Limburg, Germany, 15-cm refractor); 13.95, 9.1, 2' (A. Amorim, Florianopolis, Brazil, 7.6-cm reflector); 13.77, 10.1, 3'.7 (J. Qvam, Borrevannet, Horten, Norway, 0.10-m refractor + CCD + V filter); 13.75, 10.0, 3' (V. M. Ivanov, Saratov, Russia, 25.4-cm reflector); 13.40, 9.5, 5' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 12.48, 9.3, 5' (K. Yoshimoto, Yamaguchi, Japan, 20x100 binoculars); 11.96, 9.4, 5' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 11.81, 9.3, 5' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 10.98, 9.4, 6' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 10.00, 9.3, 5' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 9.12, 9.5, 4' (C. W. Hergenrother, Tucson, Arizona, 30x125 binoculars); 8.39, 8.8, 6'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 7.74, 12.9, 1'.3 (T. Scarmato, Calabria, Italy, 25-cm reflector + CCD + R_c filter); 6.96, 9.3, 5' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 6.38, 9.8, 2'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 3.95, 9.5, 4' (M. Goiato, Aracatuba, Brazil, 22-cm reflector; moonlight); Sep. 27.97, 9.3, 5' (M. Goiato, Aracatuba, Brazil, 22-cm reflector; moonlight); 27.80, 9.4, 3' (M. Meyer, Limburg, Germany, 15-cm refractor); 26.81, 10.2, 2' (U. Pilz, Leipzig, Germany, 32-cm reflector; moonlight); 26.17, 9.3, 5' (C. E. Spratt, Victoria, BC, Canada, 0.12-m refractor; city light pollution); 25.94, 9.0, 2' (A. Amorim, Florianopolis, Brazil, 0.076-m reflector; moonlight); 25.90, 9.8, 3'.3 (J. Qvam, Borrevannet, Horten, Norway, 0.10-m refractor + CCD + V filter); 25.17, 9.3, 5' (C. E. Spratt, Victoria, BC, Canada, 0.12-m refractor; city light pollution); 25.08, 9.1, 5' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars; moonlight); 24.38, 9.4, 3'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 24.17, 9.3, 6' (C. E. Spratt, Victoria, BC, Canada, 0.12-m refractor; city light pollution); 22.92, 9.2, 5' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 22.80, 9.1, 3'.5 (M. Meyer, Limburg, Germany, 15-cm refractor); 22.17, 9.1, 5' (C. E. Spratt, Victoria, BC, Canada, 0.12-m refractor; city light pollution); 21.17, 9.0, 5' (C. E. Spratt, Victoria, BC, Canada, 0.10-m refractor; city light pollution); 20.44, 8.7, 7'.5 (S. Yoshida, Gunma, Japan, 0.40-m reflector); 20.17, 9.0, 5' (C. E. Spratt, Victoria, BC, Canada, 0.12-m refractor; city light pollution); 19.83, 9.3, 4' (M. Lehky, Hradec Kralove, Czech Republic, 25x100 binoculars); 19.47, 9.2, 4' (K. Yoshimoto, Yamaguchi, Japan, 20x100 binoculars); 18.84, 9.1, 3' (U. Pilz, Leipzig, Germany, 32-cm reflector); 18.81, 9.3, 4' (M. Lehky, Hradec Kralove, Czech Republic, 25x100 binoculars); 18.40, 8.3, 6'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 17.96, 8.9, 6' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 17.81, 8.7, 4' (M. Meyer, Limburg, Germany, 20x100 binoculars); 17.42, 7.7, 8' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 16.51, 9.2, 4' (K. Yoshimoto, Yamaguchi, Japan, 20x100 binoculars); 16.18, 8.8, 5' (C. E. Spratt, Victoria, BC, Canada, 0.10-m refractor; light pollution); 15.96, 8.9, 6' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 15.00, 8.9, 5' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 14.84, 9.3, 4' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 14.03, 8.6, 3' (A. Amorim, Florianopolis, Brazil, 20x80 binoculars); 13.96, 8.8, 6' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 13.82, 8.4, 4' (A. Diepvens, Balen, Belgium, 20x50 binoculars); 13.40, 8.2, 6'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 12.96, 8.8, 6' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 12.84, 8.3, 5' (A. Diepvens, Balen, Belgium, 20x50 binoculars); 11.96, 8.8, 5' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 11.87, 9.0, 4' (J. J. Gonzalez, Leon, Spain, 25x100 binoculars); 11.81, 8.6, 4' (M. Meyer, Limburg, Germany, 20x100 binoculars); 11.42, 8.8, 5' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 11.10, 8.8, 6' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 9.84, 9.0, 5' (M. Lehky, Hradec Kralove, Czech Republic, 25x100 binoculars); 9.47, 8.9, 5' (K. Yoshimoto, Yamaguchi, Japan, 20x100 binoculars); 9.41, 7.9, 5' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 9.03, 8.6, 6' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars; clouds); 8.79, 9.0, 5' (M. Lehky, Hradec Kralove, Czech Republic, 25x100 binoculars); 8.12, 8.7, 6' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars; moonlight); 8.02, 8.6, 3' (A. Amorim, Florianopolis, Brazil, 20x80 binoculars); 6.37, 9.5, 3' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 5.40, 8.9, 3' (C. Wyatt, Walcha, NSW, Australia, 20cm Reflector); 3.72, 8.5, 2' (W.-t. Xu, Guangzhou, China, 10-cm refractor; city lights and strong moonlight; clouds); 3.72, 8.5, 2 (W.-t. Xu, Guangzhou, China, 10.0-cm refractor; city lights and strong moonlight; clouds); 1.81, 8.8, 5' (M. Lehky, Hradec Kralove, Czech Republic, 25x100 binoculars; moonlight); Aug. 31.90, 8.8, 5' (M. Lehky, Hradec Kralove, Czech Republic, 25x100 binoculars; moonlight); 31.09, 8.3, 7' (J. J. Gonzalez, Leon, Spain, 25x100 binoculars); 29.92, 8.3, 5' (B. H. Granslo, Stiklestad, Norway, 0.05-m refractor); 29.61, 8.0, 7' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 29.01, 8.4, 7' (J. J. Gonzalez, Leon, Spain, 25x100 binoculars); 28.87, 8.2, 4'.5 (M. Meyer, Limburg, Germany, 20x100 binoculars); 27.89, 8.1, > 8' (J. Srba, Mikuluvka, Czech Republic, 6.3-cm reflector + CCD); 27.85, 8.4, 6'.5 (M. Meyer, Limburg, Germany, 20x100 binoculars); 27.84, 8.7, 6' (M. Lehky, Hradec Kralove, Czech Republic, 25x100 binoculars); 27.13, 8.6, 7' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 27.02, 8.5, 3' (A. Amorim, Florianopolis, Brazil, 20x80 binoculars, moonlight); 26.70, 8.7, 5' (K. Yoshimoto, Yamaguchi, Japan, 20x100 binoculars); 26.58, 7.6, 9' (C. Wyatt, Walcha, NSW, Australia, 7x50 Binoculars); 25.91, 8.4, 5' (A. Diepvens, Balen, Belgium, 20x50 binoculars); 25.59, 8.4, 5' (K. Yoshimoto, Yamaguchi, Japan, 20x100 binoculars); 25.57, 7.6, 5' (C. Wyatt, Walcha, NSW, Australia, 7x50 Binoculars); 24.99, 8.5, 6' (M. Lehky, Hradec Kralove, Czech Republic, 25x100 binoculars); 24.91, 7.9, > 9' (J. Srba, Mikuluvka, Czech Republic, 6.3-cm reflector + CCD); 24.84, 8.4, 3'.7 (S. Borysenko, Holoven'ky, Ukraine, 8-cm refractor + CCD); 23.86, 8.3, 5' (M. Meyer, Limburg, Germany, 20x100 binoculars); 23.84, 8.5, 6' (M. Lehky, Hradec Kralove, Czech Republic, 25x100 binoculars); 23.43, 7.8, 5' (C. Wyatt, Walcha, NSW, Australia, 7x50 Binoculars); 23.30, 8.8, 3'.5 (M. Linnolt, Dillingham, Hawaii, 0.20-m reflector); 23.06, 8.4, 7' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 23.01, 8.3, 5' (A. Diepvens, Balen, Belgium, 20x50 binoculars); 22.94, 8.2, 6' (B. H. Granslo, Fjellhamar, Norway, 0.10-m refractor); 22.84, 8.3, 5'.5 (M. Meyer, Limburg, Germany, 20x100 binoculars); 22.58, 8.6, 5'.8 (K. Yoshimoto, Yamaguchi, Japan, 0.25-m reflector); 22.06, 8.5, 6' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 21.97, 8.7, 3' (M. L. Paradowski, Lublin, Poland, 0.20-m reflector; city lights); 21.91, 7.6, 6' (V. Nevski, Vitebsk, Belarus, 0.30-m reflector); 21.89, 8.3, 5' (A. Diepvens, Balen, Belgium, 20x50 binoculars); 21.89, 8.2, 7' (J. J. Gonzalez, Leon, Spain, 10x50 binoculars); 21.86, 8.4, 5'.5 (M. Meyer, Limburg, Germany, 20x100 binoculars); 21.80, 8.2, 3'.7 (S. Borysenko, Holoven'ky, Ukraine, 8-cm refractor + CCD); 20.96, 8.2, > 9' (J. Srba, Mikuluvka, Czech Republic, 6.3-cm reflector + CCD); 20.85, 8.1, 6'.5 (M. Lehky, Hradec Kralove, Czech Republic, 25x100 binoculars); 20.15, 9.5, 2'.6 (S. Shurpakov, remotely from near Mayhill, NM, U.S.A., 0.35-m reflector + CCD); 19.99, 8.6, 2'.4 (M. L. Paradowski, Lublin, Poland, 0.20-m reflector; city lights); 19.94, 8.5, 3'.5 (A. Kammerer, Malsch, Germany, 0.30-m reflector); 19.85, 8.0, 7' (M. Lehky, Hradec Kralove, Czech Republic, 25x100 binoculars); 19.85, 8.3, & 4' (M. Meyer, Limburg, Germany, 20x100 binoculars); 19.71, 8.8, 5' (K. Yoshimoto, Yamaguchi, Japan, 20x100 binoculars); 19.00, 8.2, 6' (J. J. Gonzalez, Leon, Spain, 10x50 binoculars); 18.85, 8.0, 7' (M. Lehky, Hradec Kralove, Czech Republic, 25x100 binoculars); 18.83, 8.5, 5' (V. M. Ivanov, Saratov, Russia, 270-mm reflector); 17.87, 8.4, 5' (A. Diepvens, Balen, Belgium, 20x50 binoculars); 17.85, 8.4, 4'.5 (M. Meyer, Limburg, Germany, 20x100 binoculars); 17.79, 8.5, 5' (V. M. Ivanov, Saratov, Russia, 275-mm reflector); 17.08, 8.4, 6' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 16.99, 8.6, 3' (A. Amorim, Florianopolis, Brazil, 20x80 binoculars); 16.90, 8.4, 5' (A. Diepvens, Balen, Belgium, 20x50 binoculars); 16.87, 7.9, > 11' (J. Srba, Mikuluvka, Czech Republic, 6.3-cm reflector + CCD); 16.29, 8.6, 5' (M. Linnolt, Dillingham, Hawaii, 0.49-m reflector); 16.04, 8.6, 5' (A. Amorim, Campeche Island, Brazil, 11x70 binoculars); 15.86, 8.2, 5' (M. Meyer, Limburg, Germany, 20x100 binoculars); 15.86, 8.4, 5' (A. Diepvens, Balen, Belgium, 20x50 binoculars); 15.85, 8.0, 5'.2 (W. Hasubick, Buchloe, Germany, 10-cm refractor); 15.48, 9.0, 3'.5 (Y. Nagai, Kanagawa, Japan, 300-mm camera lens + CCD); 14.86, 8.3, 5' (U. Pilz, Leipzig, Germany, 32-cm reflector); 14.83, 8.5, 3' (T. Scarmato, Calabria, Italy, 20x90 binoculars); 14.52, 8.6, 5' (K. Yoshimoto, Yamaguchi, Japan, 20x100 binoculars); 14.12, 8.2, 7' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 13.99, 8.7, 3' (A. Amorim, Florianopolis, Brazil, 20x80 binoculars); 13.86, 8.4, > 8' (J. Srba, Mikuluvka, Czech Republic, 6.3-cm reflector + CCD); 13.44, 7.7, 6' (C. Wyatt, Walcha, NSW, Australia, 20-cm reflector); 13.12, 8.3, 7' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 12.99, 8.6, 4' (A. Amorim, Florianopolis, Brazil, 20x80 binoculars); 12.44, 8.7, 3'.5 (Y. Nagai, Kanagawa, Japan, 300-mm camera lens + CCD); 12.02, 8.2, 7' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 11.98, 8.8, 4' (A. Amorim, Florianopolis, Brazil, 20x80 binoculars); 11.91, 8.0, 4' (A. Diepvens, Balen, Belgium, 20x50 binoculars); 11.90, 8.0, 7' (J. J. Gonzalez, Leon, Spain, 10x50 binoculars); 11.04, 9.0, 3' (A. Amorim, Florianopolis, Brazil, 0.07-m refractor); 8.97, 8.1, 7' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 8.83, 7.7, 8' (M. Lehky, Hradec Kralove, Czech Republic, 25x100 binoculars); 7.83, 7.8, 7' (M. Lehky, Hradec Kralove, Czech Republic, 25x100 binoculars); 6.83, 7.8, 7' (M. Lehky, Hradec Kralove, Czech Republic, 25x100 binoculars); 4.47, 8.6, 4'.1 (Y. Nagai, Kanagawa, Japan, 300-mm camera lens + CCD); July 31.99, 8.4, 5' (B. H. Granslo, Fjellhamar, Norway, 0.10-m refractor); 31.91, 8.4, 4'.2 (M. Meyer, Limburg, Germany, 20x100 binoculars); 30.92, 8.2, 2' (A. Diepvens, Balen, Belgium, 20x50 binoculars); 30.20, 8.3, 7' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 29.90, 7.9, 7' (M. Lehky, Hradec Kralove, Czech Republic, 25x100 binoculars); 29.18, 8.3, 6' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars; clouds); 27.94, 8.5:, 3'.8 (M. L. Paradowski, Lublin, Poland, 0.20-m reflector; city lights); 27.93, 8.3, 2' (A. Diepvens, Balen, Belgium, 20x50 binoculars); 27.86, 8.1, 8' (K. Hornoch, Ondrejov, Czech Republic, 0.07-m refractor); 26.49, 8.7, 3'.9 (Y. Nagai, Kanagawa, Japan, 300-mm camera lens + CCD); 25.92, 8.1, 8' (K. Hornoch, Ondrejov, Czech Republic, 0.07-m refractor); 25.91, 8.4, 2' (A. Diepvens, Balen, Belgium, 20x50 binoculars); 25.45, 8.6, 3'.9 (Y. Nagai, Kanagawa, Japan, 300-mm camera lens + CCD); 25.00, 8.3, 6' (J. J. Gonzalez, Leon, Spain, 10x50 binoculars); 24.89, 8.4, 2' (A. Diepvens, Balen, Belgium, 20x50 binoculars); 24.71, 8.7, 4' (C. Wyatt, Walcha, NSW, Australia, 20-cm reflector); 24.09, 8.4, 4'.5 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 23.94, 9.8, 3.4 (S. Borysenko, Holoven'ky, Ukraine, 8-cm refractor + CCD); 22.94, 9.2, 3.7 (S. Borysenko, Holoven'ky, Ukraine, 8-cm refractor + CCD); 20.98, 8.5, 4'.8 (W. Hasubick, Buchloe, Germany, 44-cm reflector); 20.25, 8.4, 6' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 19.93, 8.2, 9' (K. Hornoch, Ondrejov, Czech Republic, 0.07-m refractor); 19.75, 7.7, 8' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 19.08, 8.6, 4' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 18.94, 8.3, 8' (K. Hornoch, Ondrejov, Czech Republic, 0.07-m refractor); 17.93, 8.7, 4' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 16.92, 7.9, 8' (M. Lehky, Hradec Kralove, Czech Republic, 25x100 binoculars); 16.18, 8.4, 5' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 14.99, 8.5, 4' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 14.97, 8.9, 2' (A. Diepvens, Balen, Belgium, 0.20-m refractor); 14.09, 8.5, 5' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 13.16, 8.5, -- (A. Amorim, Florianopolis, Brazil, 20x80 binoculars; moonlight); 11.75, 8.6, 3' (W. Xu, Guangzhou, China, 10-cm refractor; city light pollution, strong moonlight); 9.44, 10.8, 2'.0 (S. Shurpakov, remotely from near Mayhill, NM, U.S.A., 0.20-m refractor + CCD); 6.83, 8.7, 3'.2 (T. Scarmato, Calabria, Italy, 25-cm reflector + CCD + R_c filter); 4.03, 9.0, 2' (A. Diepvens, Balen, Belgium, 0.20-m refractor); 3.08, 8.6, 4' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 2.03, 9.2, 2' (A. Diepvens, Balen, Belgium, 0.20-m refractor); June 29.63, 8.0, 9'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 26.92, 11.1, 0'.2 (T. Scarmato, Calabria, Italy, 25-cm reflector + CCD + R_c filter; involved with a bright star); 25.94, 9.0, 3'.7 (M. Meyer, Limburg, Germany, 15-cm refractor); 24.65, 8.7, 6' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 24.05, 8.8, 2' (A. Diepvens, Balen, Belgium, 0.20-m refractor); 23.03, 8.9, 2' (A. Diepvens, Balen, Belgium, 0.20-m refractor); 22.69, 8.1, 6' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 22.05, 8.9, 2' (A. Diepvens, Balen, Belgium, 0.20-m refractor); 21.34, 8.7, 2' (A. Amorim, Florianopolis, Brazil, 20x80 binoculars); 21.28, 8.7, 5' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 21.27, 10.9, 3'.26 (S. Shurpakov, remotely from near Mayhill, NM, U.S.A., 0.10-m refractor + CCD + R_c filter); 21.04, 8.7, 4' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 20.31, 8.8, 2' (A. Amorim, Florianopolis, Brazil, 20x80 binoculars); 20.00, 8.9, 6' (U. Pilz, Leipzig, Germany, 12-cm refractor); 19.34, 8.5, 3' (A. Amorim, Florianopolis, Brazil, 20x80 binoculars); 19.16, 8.3, 3' (A. Amorim, Florianopolis, Brazil, 20x80 binoculars); 18.29, 9.0, 2' (A. Amorim, Florianopolis, Brazil, 20x80 binoculars); 17.99, 8.8, 4' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 17.95, 9.4, 2' (M. L. Paradowski, Lublin, Poland, 0.20-m reflector; city lights); 17.94, 8.7, > 6' (J. Srba, Mikuluvka, Czech Republic, 6.3-cm reflector + CCD + R filter); 15.93, 8.7, 3'.2 (T. Scarmato, Calabria, Italy, 25-cm reflector + CCD + R_c filter); 14.93, 9.3, 3'.2 (T. Scarmato, Calabria, Italy, 25-cm reflector + CCD + R_c filter); 13.91, 8.9, 3'.2 (T. Scarmato, Calabria, Italy, 25-cm reflector + CCD); 13.31, 8.7, 4' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars; moonlight); 13.05, 9.1, 2' (A. Diepvens, Balen, Belgium, 0.20-m refractor); 12.94, 8.9, 3'.2 (T. Scarmato, Calabria, Italy, 25-cm reflector + CCD); 11.93, 8.9, 4' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 8.34, 9.0, -- (A. Amorim, Florianopolis, Brazil, 20x80 binoculars; moonlight); 6.35, 8.8, 2' (A. Amorim, Florianopolis, Brazil, 20x80 binoculars; moonlight); 5.76, 9.6, 3' (C. Wyatt, Walcha, NSW, Australia, 20-cm reflector); 5.35, 8.8, 3' (A. Amorim, Florianopolis, Brazil, 20x80 binoculars); 4.35, 9.0, -- (A. Amorim, Florianopolis, Brazil, 20x80 binoculars); 3.35, 8.9, 3' (A. Amorim, Florianopolis, Brazil, 20x80 binoculars); 3.29, 8.8, 5' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 2.36, 8.8, 5' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 2.03, 9.0, 3'.4 (M. Meyer, Limburg, Germany, 15-cm refractor); 1.34, 8.8, 3' (A. Amorim, Florianopolis, Brazil, 20x80 binoculars); 1.08, 9.0, 4' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 1.02, 9.0, 3'.5 (M. Meyer, Limburg, Germany, 15-cm refractor); May 30.07, 8.6, 2' (A. Diepvens, Balen, Belgium, 0.20-m refractor); 30.03, 9.1, 3'.4 (M. Meyer, Limburg, Germany, 15-cm refractor); 27.06, 8.8, 4' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 26.07, 8.6, 2' (A. Diepvens, Balen, Belgium, 0.20-m refractor); 26.01, 8.7, 6' (M. Lehky, Hradec Kralove, Czech Republic, 25x100 binoculars); 25.04, 9.0, 3'.5 (M. Meyer, Limburg, Germany, 15-cm refractor); 23.34, 8.9, 5' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 23.06, 8.6, 2' (A. Diepvens, Balen, Belgium, 0.20-m refractor); 23.05, 9.0, 3'.2 (M. Meyer, Limburg, Germany, 15-cm refractor); 23.05, 9.4, 4' (U. Pilz, Leipzig, Germany, 32-cm reflector); 20.05, 8.4, 2' (A. Diepvens, Balen, Belgium, 0.20-m refractor); 19.06, 8.7, 4'.5 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 19.06, 9.2, 3'.2 (M. Meyer, Limburg, Germany, 15-cm refractor); 16.37, 10.0:, -- (A. Amorim, Florianopolis, Brazil, 0.18-m reflector); 16.05, 8.3, 2' (A. Diepvens, Balen, Belgium, 0.20-m refractor); 4.10, 8.8, 2' (A. Diepvens, Balen, Belgium, 0.20-m refractor); 3.35, 9.0, 4' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 2.17, 8.9, 3' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); COMET C/2007 B2 (Skiff) Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Aug. 24.15, 17.4, 0'.13 (W. Robledo, Cordoba, Argentina, 0.20-m reflector + CCD); COMET C/2007 N3 (Lulin) Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Sep. 26.47, 14.3, 1'.2 (V. Nevski, remotely from near Mayhill, NM, U.S.A., 0.36-m reflector + CCD); 20.78, [13.6, ! 0'.7 (S. Yoshida, Gunma, Japan, 0.40-m reflector); 16.47, 14.5, 1'.0 (D. Chestnov, remotely from near Mayhill, NM, U.S.A., 0.41-m reflector + CCD); Aug. 21.06, [13.2, -- (J. Srba, Mikuluvka, Czech Republic, 6.3-cm reflector + CCD; low altitude); May 16.93, 11.4, 1'.5 (M. Goiato, Aracatuba, Brazil, 22-cm reflector); COMET C/2007 Q3 (Siding Spring) Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Dec. 29.20, 9.6, 3'.5 (M. Meyer, Limburg, Germany, 15-cm refractor); 27.19, 9.8, 2'.7 (M. L. Paradowski, Lublin, Poland, 0.20-m reflector; city lights); 27.09, 10.2, 3' (U. Pilz, Leipzig, Germany, 32-cm reflector); 26.25, 10.1, 1' (A. Diepvens, Balen, Belgium, 0.20-m refractor); 26.21, 9.7, 2'.9 (M. Meyer, Limburg, Germany, 15-cm refractor); 25.15, 10.1, 1' (A. Diepvens, Balen, Belgium, 0.20-m refractor); 21.19, 9.7, 3'.0 (M. Meyer, Limburg, Germany, 15-cm refractor); 20.18, 9.6, 3'.5 (J. J. Gonzalez, Asturias, Spain, 0.10-m reflector); 19.31, 9.6, 3' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 12.17, 9.9, 4' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); Nov. 24.25, 11.9, 2' (J. Qvam, Borrevannet, Horten, Norway, 0.10-m refractor + CCD + V filter; twilight); 24.18, 9.4, 4' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 18.17, 9.2, 5' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 14.18, 10.3, 2' (U. Pilz, Leipzig, Germany, 12-cm refractor); Oct. 29.19, 10.4, 0'.7 (W. Hasubick, Buchloe, Germany, 44-cm reflector); 26.22, 9.5, 4' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector; zodiacal light); 20.14, 10.8:, 2' (U. Pilz, Leipzig, Germany, 32-cm reflector); 16.20, 8.7, 5' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector; zodiacal light; alt. 15 deg); Sep. 29.21, 8.7, 5' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector; alt. 10 deg); June 23.36, 11.7, 1'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 22.34, 12.0, 1' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 13.92, 9.8, 4' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 13.36, 12.4, 1' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 10.35, 12.1, 1' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 2.91, 10.4, 1' (A. Amorim, Florianopolis, Brazil, 0.18-m reflector; moonlight); May 24.39, 12.8, 1'.5 (C. Wyatt, Walcha, NSW, Australia, 30-cm reflector); 9.40, 11.7, 1' (C. Wyatt, Walcha, NSW, Australia, 35-cm reflector); COMET C/2008 A1 (McNaught) Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Mar. 22.19, 11.2, 4' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 21.10, 11.0, 3'.5 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); COMET C/2008 FK75 (Lemmon-Siding Spring) Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Aug. 1.21, 16.4, < 0'.2 (D. Chestnov, remotely from near Mayhill, NM, U.S.A., 0.21-m refractor + CCD; moonlight); July 15.16, 16.3, 0'.17 (S. Shurpakov, remotely from near Mayhill, NM, U.S.A., 0.35-m refractor + CCD); June 21.24, 16.4, 0'.5 (D. Chestnov, remotely from near Mayhill, NM, U.S.A., 0.36-m reflector + CCD); COMET C/2008 J1 (Boattini) Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Jan. 1.81, 16.7, 0'.4 (S. Shurpakov, Baran', Belarus, 80-mm refractor + CCD); 2008 Nov. 22.49, 14.1, 0'.9 (S. Yoshida, Gunma, Japan, 0.40-m reflector); COMET C/2008 N1 (Holmes) Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Sep. 20.43, [13.8, ! 0'.3 (S. Yoshida, Gunma, Japan, 0.40-m reflector); Aug. 20.13, 16.3, 0'.28 (S. Shurpakov, remotely from near Mayhill, NM, U.S.A., 0.35-m reflector + CCD); 16.84, [15.4, -- (J. Srba, Mikuluvka, Czech Republic, 6.3-cm reflector + CCD); 1.20, 16.5, 0'.3 (D. Chestnov, remotely from near Mayhill, NM, U.S.A., 0.21-m refractor + CCD; moonlight); COMET P/2008 O2 (McNaught) Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 July 20.44, [18.7, -- (D. Chestnov, remotely from near Mayhill, NM, U.S.A., 0.21-m refractor + CCD); COMET C/2008 P1 (Garradd) Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Nov. 18.74, 16.7, 0'.2 (T. Scarmato, Calabria, Italy, 25-cm reflector + CCD + R_c filter); Sep. 23.01, 15.2, -- (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 20.48, [14.2, ! 0'.5 (S. Yoshida, Gunma, Japan, 0.40-m reflector); 15.92, 16.1, 0'.2 (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD); Aug. 28.93, 16.2, 0'.2 (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD); 21.95, 16.0, 0'.2 (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD); COMET C/2008 Q1 (Maticic) Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 June 21.21, 17.4, 0'.3 (D. Chestnov, remotely from near Mayhill, NM, U.S.A., 0.36-m reflector + CCD); 13.89, 14.7, 0'.5 (T. Scarmato, Calabria, Italy, 25-cm reflector + CCD); 12.89, 16.2, 0'.3 (T. Scarmato, Calabria, Italy, 25-cm reflector + CCD); COMET C/2008 Q3 (Garradd) Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Aug. 23.37, 9.1, 7' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 21.86, 9.5, 5' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector; alt. 7 deg); 16.37, 9.4, 6'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 15.41, 10.3, 4' (C. Wyatt, Walcha, NSW, Australia, 20-cm reflector); 13.94, 9.8, 4' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 11.94, 9.7, 4' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 11.92, 10.0:, -- (A. Amorim, Florianopolis, Brazil, 0.18-m reflector); 11.88, 9.7, 3' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector; alt. 8 deg); 8.94, 9.5, 5' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); July 31.93, 9.3, 4' (M. Goiato, Aracatuba, Brazil, 22-cm reflector; moonlight); 29.94, 9.1, 5' (M. Goiato, Aracatuba, Brazil, 22-cm reflector; moonlight); 24.90, 9.4, 5' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 23.38, 8.5, 8' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 20.38, 8.4, 8' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 19.96, 9.2, 5' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 19.37, 8.5, 8' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 18.93, 9.0, 6' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 17.90, 9.2, 5' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 16.00, 8.9, 6' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 15.79, 8.1, 12' (U. Pilz, Leipzig, Germany, 10x50 binoculars); 14.90, 9.1, 5' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 14.00, 8.8, 8' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 12.97, 8.7, 8' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 12.27, 8.8, 6' (M. Linnolt, Dillingham, Hawaii, 0.49-m reflector); 8.92, 8.7, 6' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 3.92, 8.3:, 8' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars; moonlight); 1.93, 8.1, 9' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars; moonlight); 1.99, 8.0, 5' (A. Amorim, Florianopolis, Brazil, 20x80 binoculars; moonlight); June 30.92, 8.0, 5' (A. Amorim, Florianopolis, Brazil, 0.18-m reflector; moonlight); 28.94, 7.8, 10' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars; moonlight); 28.26, 8.6, 5'.0 (M. Linnolt, Honolulu, Hawaii, 0.49-m reflector; bright sky); 24.01, 7.5, 12' (M. Goiato, Aracatuba, Brazil, 7x50 binoculars); 23.38, 7.5, 12' (C. Wyatt, Walcha, NSW, Australia, 7x50mm Binoculars); 22.36, 7.9, 13' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 22.35, 7.6, 11' (S. Rae, Hamilton, New Zealand, 10x50 binoculars); 22.08, 7.3, 10' (W. Souza, Sao Paulo, Brazil, 20x80 binoculars); 22.05, 7.3, 14' (M. Goiato, Aracatuba, Brazil, 7x50 binoculars); 21.91, 7.1, 10' (A. Amorim, Florianopolis, Brazil, 10x50 binoculars); 21.34, 7.6, 11' (S. Rae, Hamilton, New Zealand, 10x50 binoculars); 20.98, 7.5, -- (A. Amorim, Florianopolis, Brazil, 10x50 binoculars); 20.93, 7.2, 14' (M. Goiato, Aracatuba, Brazil, 7x50 binoculars); 20.92, 7.1, 10' (J. J. Gonzalez, Leon, Spain, 10x50 binoculars; alt. 11 deg); 20.35, 7.5, 9' (S. Rae, Hamilton, New Zealand, 10x50 binoculars); 19.96, 7.2, 15' (M. Goiato, Aracatuba, Brazil, 7x50 binoculars); 19.93, 7.2, 10' (A. Amorim, Florianopolis, Brazil, 10x50 binoculars); 19.37, 7.0, 10' (M. Linnolt, Ocean View, Hawaii, 10x50 binoculars); 18.99, 7.1, 9' (A. Amorim, Florianopolis, Brazil, 20x80 binoculars); 18.93, 7.1, 15' (M. Goiato, Aracatuba, Brazil, 7x50 binoculars); 18.02, 7.0, 10' (W. Souza, Sao Paulo, Brazil, 11x80 binoculars); 18.00, 7.1, 15' (M. Goiato, Aracatuba, Brazil, 7x50 binoculars); 17.92, 7.0, 12' (J. J. Gonzalez, Leon, Spain, 10x50 binoculars; alt. 10 deg); 17.06, 7.0, 10' (W. Souza, Sao Paulo, Brazil, 11x80 binoculars); 16.94, 7.0, 15' (M. Goiato, Aracatuba, Brazil, 7x50 binoculars); 16.00, 7.0, 16' (M. Goiato, Aracatuba, Brazil, 7x50 binoculars); 15.48, 6.6, 12' (C. Wyatt, Walcha, NSW, Australia, 7x50 binoculars); 14.95, 7.0, 14' (M. Goiato, Aracatuba, Brazil, 7x50 binoculars); 14.92, 7.5, 10' (A. Amorim, Florianopolis, Brazil, 10x50 binoculars); 14.31, 8.5, 6'.0 (M. Linnolt, Dillingham, Hawaii, 0.49-m reflector); 13.96, 7.0, 16' (M. Goiato, Aracatuba, Brazil, 7x50 binoculars); 13.91, 7.3, 8' (A. Amorim, Florianopolis, Brazil, 12x50 binoculars); 13.50, 6.6, 15' (C. Wyatt, Walcha, NSW, Australia, 7x50 binoculars); 12.94, 6.8, 18' (M. Goiato, Aracatuba, Brazil, 7x50 binoculars); 12.90, 7.2, 10' (A. Amorim, Florianopolis, Brazil, 10x50 binoculars); 12.38, 7.1, 12' (C. Wyatt, Walcha, NSW, Australia, 7x50 binoculars); 11.92, 6.8, 15' (J. J. Gonzalez, Leon, Spain, 10x50 binoculars; alt. 5 deg); 11.36, 7.5, 12' (C. Wyatt, Walcha, NSW, Australia, 7x50 binoculars); 10.36, 7.2, 10' (C. Wyatt, Walcha, NSW, Australia, 7x50 binoculars); 9.93, 6.7, 20' (M. Goiato, Aracatuba, Brazil, 7x50 binoculars); 8.02, 7.0:, -- (W. Souza, Sao Paulo, Brazil, 11x80 binoculars; moonlight); 7.90, 7.0, 7' (A. Amorim, Florianopolis, Brazil, 20x80 binoculars; moonlight); 6.08, 7.1, -- (W. Souza, Sao Paulo, Brazil, 20x80 binoculars; moonlight); 5.74, 7.5, < 5' (C. Wyatt, Walcha, NSW, Australia, 20-cm reflector); 5.08, 7.3, -- (W. Souza, Sao Paulo, Brazil, 20x80 binoculars; moonlight); 5.01, 7.0, 7' (A. Amorim, Florianopolis, Brazil, 20x80 binoculars; moonlight); 4.97, 7.0:, 14' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars; strong moonlight); 4.10, 7.1, 8' (A. Amorim, Florianopolis, Brazil, 20x80 binoculars; moonlight); 4.08, 7.2, -- (W. Souza, Sao Paulo, Brazil, 20x80 binoculars; moonlight); 3.27, 6.8, 18' (M. Goiato, Aracatuba, Brazil, 7x50 binoculars); 3.07, 7.2, 8' (W. Souza, Sao Paulo, Brazil, 20x80 binoculars; moonlight); 3.04, 6.9, < 20' (M. Goiato, Aracatuba, Brazil, 7x50 binoculars; moonlight); 2.93, 6.9, 10' (A. Amorim, Florianopolis, Brazil, 10x50 binoculars; moonlight); 2.08, 6.9, 16' (M. Goiato, Aracatuba, Brazil, 7x50 binoculars; moonlight); 2.07, 7.3, 8' (W. Souza, Sao Paulo, Brazil, 20x80 binoculars; moonlight); 1.93, 7.3, 12' (A. Amorim, Florianopolis, Brazil, 10x50 binoculars; moonlight); May 31.91, 7.3, 12' (A. Amorim, Florianopolis, Brazil, 10x50 binoculars; moonlight); 30.46, 7.5, 10' (C. Wyatt, Walcha, NSW, Australia, 7x50 binoculars); 26.39, 7.6, 10' (D. A. J. Seargent, The Entrance, NSW, Australia, 10x50 binoculars); 25.91, 7.6, 6' (A. Amorim, Florianopolis, Brazil, 20x80 binoculars); 25.12, 7.2, 18' (M. Goiato, Aracatuba, Brazil, 7x50 binoculars); 24.97, 7.5, 8' (A. Amorim, Campeche Island, Brazil, 20x80 binoculars); 24.38, 7.2, 10' (C. Wyatt, Walcha, NSW, Australia, 7x50 binoculars); 24.25, 7.8, 8' (W. Souza, Sao Paulo, Brazil, 20x80 binoculars); 24.04, 7.3, 15' (M. Goiato, Aracatuba, Brazil, 7x50 binoculars); 23.30, 7.3, 15' (M. Goiato, Aracatuba, Brazil, 7x50 binoculars); 23.25, 7.9, 10' (W. Souza, Sao Paulo, Brazil, 20x80 binoculars); 22.95, 8.2, 6' (A. Amorim, Florianopolis, Brazil, 20x80 binoculars); 22.02, 7.4, 15' (M. Goiato, Aracatuba, Brazil, 7x50 binoculars); 21.95, 7.3, 10' (A. Amorim, Florianopolis, Brazil, 20x80 binoculars); 21.13, 7.5, 14' (M. Goiato, Aracatuba, Brazil, 7x50 binoculars); 21.05, 7.5, 10' (A. Amorim, Florianopolis, Brazil, 10x50 binoculars); 20.02, 7.5, 14' (M. Goiato, Aracatuba, Brazil, 7x50 binoculars); 19.15, 7.6, 12' (A. Amorim, Florianopolis, Brazil, 10x50 binoculars); 18.10, 7.5, 12' (M. Goiato, Aracatuba, Brazil, 7x50 binoculars); 18.00, 7.8, 7' (A. Amorim, Florianopolis, Brazil, 20x80 binoculars); 17.12, 7.6, 12' (M. Goiato, Aracatuba, Brazil, 7x50 binoculars); 17.08, 7.7, 7' (A. Amorim, Florianopolis, Brazil, 20x80 binoculars); 16.11, 7.7, 8' (A. Amorim, Florianopolis, Brazil, 10x50 binoculars); 16.09, 7.6, 12' (M. Goiato, Aracatuba, Brazil, 7x50 binoculars); 13.42, 7.6, 8' (M. Mattiazzo, Castlemaine, Victoria, Australia, 10x50 binoculars); 9.47, 8.1, 7' (C. Wyatt, Walcha, NSW, Australia, 35-cm reflector); 8.51, 9.6, 2' (C. Wyatt, Walcha, NSW, Australia, 35-cm reflector); 7.35, 7.8, 10' (A. Amorim, Florianopolis, Brazil, 10x50 binoculars); 6.32, 8.0, 7' (A. Amorim, Florianopolis, Brazil, 10x50 binoculars); 6.31, 8.2, 10' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 5.79, 8.0, 7' (M. Mattiazzo, Castlemaine, Victoria, Australia, 10x50 binoculars); 5.33, 8.5, 7' (A. Amorim, Florianopolis, Brazil, 10x50 binoculars); 3.31, 8.5, 8' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 3.18, 8.8, 4' (A. Amorim, Florianopolis, Brazil, 20x80 binoculars); COMET C/2008 T2 (Cardinal) Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Oct. 10.94, 11.6:, 2' (M. Goiato, Aracatuba, Brazil, 22-cm reflector; Sep. 26.94, 11.3:, 1'5 (M. Goiato, Aracatuba, Brazil, 22-cm reflector; moonlight); 12.93, 10.8, 1'.5 (M. Goiato, Aracatuba, Brazil, 22-cm reflector, comet alt. 18 deg); 11.41, 13.1, 0'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 9.39, 12.4, 0'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); Aug. 22.93, 10.7:, 3' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 16.37, 11.2, 2'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 14.38, 12.2, 2'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 8.93, 9.5, 3' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); July 30.93, 9.3:, 4' (M. Goiato, Aracatuba, Brazil, 22-cm reflector; moonlight); 23.37, 9.3, 6'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 21.37, 8.4, 8' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 20.37, 9.7, 5'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 19.92, 9.4, 4' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 19.35, 9.6, 5' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); June 30.90, 8.8:, -- (A. Amorim, Florianopolis, Brazil, 0.18-m reflector; moonlight); 23.92, 8.8, 6' (M. Goiato, Aracatuba, Brazil, 20X100 binoculars); 23.35, 9.2, 5'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 22.34, 9.5, 5' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 21.90, 8.7, 3' (A. Amorim, Florianopolis, Brazil, 0.18-m reflector); 20.92, 8.6, 5' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 20.90, 8.7, 3' (A. Amorim, Florianopolis, Brazil, 0.18-m reflector); 18.92, 8.6, 7' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 16.93, 8.6, 6' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 14.92, 8.6, 6' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 14.91, 8.8, 4' (A. Amorim, Florianopolis, Brazil, 0.18-m reflector); 13.35, 9.4, 4' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 12.91, 8.6, 6' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 11.37, 9.7, 4' (C. Wyatt, Walcha, NSW, Australia, 20-cm reflector); 10.34, 8.8, 6' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 9.92, 8.7, 6' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 3.92, 8.7, 4'.5 (M. Goiato, Aracatuba, Brazil, 22-cm reflector; moonlight); 2.90, 9.0, 2' (A. Amorim, Florianopolis, Brazil, 0.18-m reflector; moonlight); May 31.90, 8.8, 4' (A. Amorim, Florianopolis, Brazil, 0.18-m reflector; moonlight); 26.90, 8.5, 5' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector; alt. 5 deg); 24.35, 9.3, 5' (C. Wyatt, Walcha, NSW, Australia, 30-cm reflector); 23.92, 8.8, 4' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 22.93, 8.6, 5' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 22.90, 9.8, -- (A. Amorim, Florianopolis, Brazil, 0.18-m reflector); 21.91, 9.5, -- (A. Amorim, Florianopolis, Brazil, 0.18-m reflector); 20.91, 9.5, 1' (A. Amorim, Florianopolis, Brazil, 0.18-m reflector); 19.93, 8.7, 5' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 18.90, 8.6, 8' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector; zodiacal light; alt. 12 deg); 17.91, 9.5, 1' (A. Amorim, Florianopolis, Brazil, 0.18-m reflector); 16.94, 8.6, 5' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 16.90, 9.5, 0'.5 (A. Amorim, Florianopolis, Brazil, 0.18-m reflector); 15.93, 8.6, 5' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 12.93, 8.7, 4' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 11.91, 9.0:, -- (A. Amorim, Florianopolis, Brazil, 0.18-m reflector); 10.93, 8.6, 4' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 9.38, 9.3, < 4' (C. Wyatt, Walcha, NSW, Australia, 35-cm reflector); 8.93, 8.7:, 4' (M. Goiato, Aracatuba, Brazil, 22-cm reflector; moonlight); 2.48, 8.9, 2'.2 (S. Yoshida, Gunma, Japan, 0.40-m reflector); COMET P/2008 Y2 (Gibbs) Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Feb. 2.00, 17.2, 0'.2 (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD); Jan. 9.01, 17.8, 0'.2 (A. Baransky, Lisnyky, Ukraine, 0.70-m reflector + CCD); COMET P/2008 Y3 (McNaught) Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Jan. 8.95, 18.4, 0'.2 (A. Baransky, Lisnyky, Ukraine, 0.70-m reflector + CCD); COMET C/2009 E1 (Itagaki) Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 July 27.91, 12.4, 0'.3 (M. L. Paradowski, Lublin, Poland, 0.20-m reflector; city lights); 11.31, 17.9, 0'.40 (D. Chestnov, remotely from near Mayhill, NM, U.S.A., 0.36-m reflector + CCD); 7.45, 17.3, -- (D. Chestnov, remotely from near Mayhill, NM, U.S.A., 0.36-m reflector + CCD); June 22.71, 13.0, 2' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 21.31, 11.7:, 2' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 21.08, 10.8, 5' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 17.89, [14.6, -- (J. Srba, Mikuluvka, Czech Republic, 6.3-cm reflector + CCD + R filter; low altitude); 1.09, 10.3, 5' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); May 27.08, 10.2, 5' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 26.03, 10.2, 4' (M. Lehky, Hradec Kralove, Czech Republic, 25x100 binoculars); 23.35, 10.9, 3' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 19.07, 9.7, 5' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector; alt. 10 deg); 2.15, 8.8, 3' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector; alt. 12 deg); COMET C/2009 F4 (McNaught) Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Sep. 12.97, 17.0, 0'.13 (W. Robledo, Cordoba, Argentina, 0.20-m reflector + CCD); June 21.18, 17.8, 0'.25 (D. Chestnov, remotely from near Mayhill, NM, U.S.A., 0.36-m reflector + CCD); COMET C/2009 F5 (McNaught) Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 June 12.87, 17.6, 0.15' (T. Scarmato, Calabria, Italy, 25-cm reflector + CCD); May 2.10, 14.8, 0'.3 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); COMET C/2009 F6 (Yi-SWAN) Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Sep. 26.32, [14, -- (M. Goiato, Aracatuba, Brazil, 22-cm reflector); Aug. 29.35, 11.5:, 2'.5 (M. Goiato, Aracatuba, Brazil, 22-cm reflector); May 26.91, 9.3:, 5' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector; alt. 9 deg); 18.92, 9.1, 6' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector; alt. 11 deg); 12.88, 8.9, 3' (U. Pilz, Leipzig, Germany, 12-cm refractor); 2.13, 9.2, 3'.5 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector; alt. 12 deg); COMET P/2009 F7 (LINEAR) Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Apr. 17.10, [14.5, -- (M. Goiato, Aracatuba, Brazil, 22-cm reflector); COMET C/2009 G1 (STEREO) Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 July 12.93, 11.0, 2' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); June 28.93, 10.2, 3'.5 (M. Goiato, Aracatuba, Brazil, 22-cm reflector; moonlight); 24.67, 9.8, 9'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 23.37, 10.1, 11' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 22.77, [11.5, ! 1' (S. Rae, Hamilton, New Zealand, 0.25-m reflector); 22.35, 9.6, 9'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 20.36, [10, ! 1' (S. Rae, Hamilton, New Zealand, 0.25-m reflector); 19.36, 10.0:, -- (A. Amorim, Florianopolis, Brazil, 0.18-m reflector; alt. 26 deg); 18.32, 10.0:, -- (A. Amorim, Florianopolis, Brazil, 0.18-m reflector; alt. 19 deg); 14.89, 9.0:, -- (A. Amorim, Florianopolis, Brazil, 0.18-m reflector; alt. 14 deg); 13.34, 9.6, 10' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 13.33, 9.3, 5' (M. Goiato, Aracatuba, Brazil, 22-cm reflector; moonlight); 8.35, 9.0, -- (A. Amorim, Florianopolis, Brazil, 20x80 binoculars; moonlight); 6.36, 9.2, -- (A. Amorim, Florianopolis, Brazil, 20x80 binoculars; moonlight); 5.77, 10.8, 4' (C. Wyatt, Walcha, NSW, Australia, 20-cm reflector); 5.35, 8.9, 3' (A. Amorim, Florianopolis, Brazil, 20x80 binoculars); 4.33, 8.8, 3' (A. Amorim, Florianopolis, Brazil, 20x80 binoculars, nebulosity interference); 3.35, 8.8, 7' (A. Amorim, Florianopolis, Brazil, 20x80 binoculars); 3.28, 9.0, 7' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 2.35, 8.9, 9' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 1.33, 8.8, 4' (A. Amorim, Florianopolis, Brazil, 20x80 binoculars); May 30.66, 9.3, 5' (C. Wyatt, Walcha, NSW, Australia, 20-cm reflector); 24.33, 8.7, 6' (A. Amorim, Campeche Island, Brazil, 20x80 binoculars); 23.32, 8.8, 8' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 21.31, 8.6, 5' (A. Amorim, Florianopolis, Brazil, 20x80 binoculars); 18.34, 8.6, 5' (A. Amorim, Florianopolis, Brazil, 20x80 binoculars); 16.35, 8.5, 5' (A. Amorim, Florianopolis, Brazil, 20x80 binoculars); 6.32, 8.7, 6' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 5.36, 8.5, 5' (A. Amorim, Florianopolis, Brazil, 20x80 binoculars); 3.34, 8.8, 5' (A. Amorim, Florianopolis, Brazil, 20x80 binoculars); 3.33, 8.8, 6' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); Apr. 29.33, 9.3, 3' (A. Amorim, Florianopolis, Brazil, 0.18-m reflector); 28.34, 9.3, 1' (A. Amorim, Florianopolis, Brazil, 0.18-m reflector); 27.35, 9.2, 2' (A. Amorim, Florianopolis, Brazil, 0.18-m reflector); 27.34, 9.0, 6' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 25.74, 9.4, 6' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 25.33, 9.1, 4' (M. Goiato, Aracatuba, Brazil, 22-cm reflector; clouds); 23.33, 9.1, 5' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 21.18, 9.0, 2' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector; alt. 7 deg); 20.33, 9.2, 3' (M. Goiato, Aracatuba, Brazil, 22-cm reflector; moonlight); 19.33, 9.5, -- (A. Amorim, Florianopolis, Brazil, 0.18-m reflector; moonlight); 18.36, 9.6, -- (A. Amorim, Florianopolis, Brazil, 0.18-m reflector; moonlight); 11.35, 9.6, 3' (M. Goiato, Aracatuba, Brazil, 22-cm reflector; moonlight); 11.33, 9.3, -- (J. G. de S. Aguiar, Campinas, Brazil, 0.27-m reflector; moonlight); 10.35, 9.8:, 3' (M. Goiato, Aracatuba, Brazil, 22-cm reflector; moonlight); 10.33, 9.5, -- (J. G. de S. Aguiar, Campinas, Brazil, 0.27-m reflector); COMET P/2009 K1 (Gibbs) Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Aug. 1.52, 15.4, 0'.4 (D. Chestnov, remotely from near Pingelly, W. Australia, 0.15-m refractor + CCD; moonlight); July 31.51, 15.4, 0'.5 (D. Chestnov, remotely from near Pingelly, W. Australia, 0.15-m refractor + CCD; moonlight); 30.47, 15.4, 0'.4 (D. Chestnov, remotely from near Pingelly, W. Australia, 0.15-m refractor + CCD; moonlight); 30.15, 15.0, < 0'.5 (D. Chestnov, remotely from near Mayhill, NM, U.S.A., 0.21-m refractor + CCD; twilight, moonlight); 24.15, 15.3, -- (D. Chestnov, remotely from near Mayhill, NM, U.S.A., 0.21-m refractor + CCD; twilight); COMET C/2009 K2 (Catalina) Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Aug. 20.16, 15.1, 0'.38 (S. Shurpakov, remotely from near Mayhill, NM, U.S.A., 0.35-m reflector + CCD); 3.19, 18.3, < 0'.15 (D. Chestnov, remotely from near Mayhill, NM, U.S.A., 0.36-m reflector + CCD; moonlight); 1.18, 18.3, < 0'.2 (D. Chestnov, remotely from near Mayhill, NM, U.S.A., 0.36-m reflector + CCD; moonlight); July 25.20, 17.6, < 0'.3 (D. Chestnov, remotely from near Mayhill, NM, U.S.A., 0.21-m refractor + CCD); 13.35, 17.8, 0'.33 (D. Chestnov, remotely from near Mayhill, NM, U.S.A., 0.36-m reflector + CCD; moonlight); 12.27, 18.1, 0'.40 (D. Chestnov, remotely from near Mayhill, NM, U.S.A., 0.36-m reflector + CCD); COMET C/2009 K4 (Gibbs) Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 June 11.95, 14.0, 1'.2 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); COMET C/2009 K5 (McNaught) Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Aug. 3.28, 16.5, < 0'.3 (D. Chestnov, remotely from near Mayhill, NM, U.S.A., 0.36-m reflector + CCD; moonlight); July 25.74, 16.4:, -- (D. Chestnov, remotely from near Pingelly, W. Australia, 0.15-m refractor + CCD); 23.49, 16.2, -- (D. Chestnov, remotely from near Pingelly, W. Australia, 0.15-m refractor + CCD); COMET P/2009 L2 (Yang-Gao) Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Aug. 21.85, 16.8, 0'.3 (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD); 1.21, 14.8, 0'.4 (D. Chestnov, remotely from near Mayhill, NM, U.S.A., 0.21-m refractor + CCD; moonlight); July 30.17, 14.4, 0'.4 (D. Chestnov, remotely from near Mayhill, NM, U.S.A., 0.21-m refractor + CCD; moonlight); 28.93, 15.4, 0'.4 (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD); 25.74, 15.0, -- (D. Chestnov, remotely from near Pingelly, W. Australia, 0.15-m refractor + CCD); 17.17, 13.4, 0'.8 (D. Chestnov, remotely from near Mayhill, NM, U.S.A., 0.21-m refractor + CCD); 13.38, 13.5, 0'.6 (D. Chestnov, remotely from near Mayhill, NM, U.S.A., 0.21-m refractor + CCD; moonlight); 5.52, 13.2, 0'.6 (D. Chestnov, remotely from near Pingelly, Western Australia, 0.15-m refractor + CCD; moonlight); 3.09, 13.2, 0'.8 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 1.19, 13.0, 1'.0 (D. Chestnov, remotely from near Mayhill, NM, U.S.A., 0.18-m refractor + CCD; moonlight); June 29.60, 13.4, 1'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 29.14, 12.9, 1' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 23.42, 13.6, 1'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 22.40, 12.8, 4' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 20.99, 12.8, 0'.7 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 19.15, 12.5, 1' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 18.99, 12.8, -- (J. G. de S. Aguiar, Campinas, Brazil, 0.27-m reflector); 18.17, 12.3, 1' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 17.99, 12.8, -- (J. G. de S. Aguiar, Campinas, Brazil, 0.27-m reflector); 17.97, 12.7, > 1' (J. Srba, Mikuluvka, Czech Republic, 6.3-cm reflector + CCD + R filter; low altitude); 17.97, 12.9, 0'.6 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 17.95, 12.9, 0'.7 (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD); 16.98, 12.9, -- (J. G. de S. Aguiar, Campinas, Brazil, 0.27-m reflector); COMET P/2009 O3 (Hill) Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Aug. 25.98, 18.2, 0'.3 (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD); COMET C/2009 O4 (Hill) Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Sep. 14.16, [14.5, - (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 13.62, 15.1, 0'.3 (D. Chestnov, remotely from near Pingelly, W. Australia, 0.15-m refractor + CCD); 12.08, 16.6, 0'.1 (W. Robledo, Cordoba, Argentina, 0.20-m reflector + CCD); Aug. 27.24, 15.7, 0'.3 (D. Chestnov, remotely from near Mayhill, NM, U.S.A., 0.41-m reflector + CCD); 19.08, 15.2, -- (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 3.28, 16.5, < 0'.3 (D. Chestnov, remotely from near Mayhill, NM, U.S.A., 0.36-m reflector + CCD; moonlight); July 30.96, 17.1, 0'.3 (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD); COMET C/2009 P1 (Garradd) Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Sep. 13.61, 17.0, 0'.3 (D. Chestnov, remotely from near Pingelly, W. Australia, 0.15-m refractor + CCD); 13.32, 17.7, 0'.13 (W. Robledo, Cordoba, Argentina, 0.20-m reflector + CCD); Aug. 23.35, 18.1, 0'.13 (W. Robledo, Cordoba, Argentina, 0.20-m reflector + CCD); COMET C/2009 P2 (Boattini) Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Sep. 20.88, 18.2, 0'.2 (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD); COMET P/2009 Q1 (Hill) Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Sep. 15.32, 18.1, 0'.3 (D. Chestnov, remotely from near Mayhill, NM, U.S.A., 0.41-m reflector + CCD); COMET P/2009 Q4 (Boattini) Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Dec. 19.25, 12.7, 0'.8 (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 18.25, 12.7, 0'.7 (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 12.08, 11.8, 2'.5 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); Nov. 24.15, 12.8, 1'.3 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 18.15, 13.3, 0'.8 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); Oct. 26.12, 13.8, 0'.3 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); Sep. 16.43, 17.2, 0'.2 (D. Chestnov, remotely from near Pingelly, W. Australia, 0.41-m reflector + CCD); COMET P/2009 Q5 (McNaught) Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Sep. 23.08, 14.7, 0'.2 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 13.59, 16.7, 0'.2 (D. Chestnov, remotely from near Pingelly, W. Australia, 0.15-m refractor + CCD); 13.23, 17.3, 0'.13 (W. Robledo, Cordoba, Argentina, 0.20-m reflector + CCD); COMET C/2009 R1 (McNaught) Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Sep. 21.13, 16.9, 0'.3 (D. Chestnov, remotely from near Mayhill, NM, U.S.A., 0.36-m reflector + CCD); 12.06, 17.0, 0'.1 (W. Robledo, Cordoba, Argentina, 0.20-m reflector + CCD); COMET P/2009 T2 (La Sagra) Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Dec. 4.79, 14.8, -- (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); Oct. 26.19, 15.3, 0'.2 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); COMET 10P/Tempel Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Apr. 19.83, 19.2, 0'.1 (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD); 1.88, 19.0, 0'.1 (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD); COMET 19P/Borrelly Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Mar. 25.98, 16.1, 1' (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD); 22.16, 12.8, 1'.5 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); Feb. 2.11, 15.9, 1' (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD); COMET 22P/Kopff Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Nov. 17.74, 14.4, 0'.9 (T. Scarmato, Calabria, Italy, 25-cm reflector + CCD + R_c filter); 15.43, 13.4, 1'.2 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 13.00, 12.0, 2'.5 (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 9.41, 14.0, 1' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 8.83, 11.7, 3' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); Oct. 24.10, 11.7, 2' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 21.12, 11.8, 2' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 19.76, 11.3, 3' (U. Pilz, Leipzig, Germany, 32-cm reflector); 18.41, 13.5, 1' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 17.42, 13.4, 1'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 16.40, 12.9, 3' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 16.10, 11.4, 2' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 13.41, 12.5, 1' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 11.82, 11.2, 3' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 10.12, 11.5, 3' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); Sep. 29.07, 11.0, 3' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 25.13, 11.0, 3' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 24.41, 10.3, 5' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 23.89, 11.6, 0'.8 (W. Hasubick, Buchloe, Germany, 44-cm reflector); 22.93, 11.1, 3' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 20.74, 10.8, 2'.0 (S. Yoshida, Gunma, Japan, 0.40-m reflector); 18.89, 11.4, 3' (U. Pilz, Leipzig, Germany, 32-cm reflector); 18.41, 10.3, 7' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 17.47, 11.7, 3' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 14.12, 10.5, 3' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 13.41, 10.3, 4' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 12.44, 10.4, 4' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 11.91, 10.7, 3' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 11.43, 10.2, 6'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 9.41, 11.7, 4' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 6.38, 11.6, 2'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); Aug. 31.10, 10.4, 4' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 29.02, 10.4, 3' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 28.02, 10.2, 7' (M. Lehky, Hradec Kralove, Czech Republic, 0.42-m reflector); 27.93, 11.0, 2'.7 (J. Srba, Mikuluvka, Czech Republic, 6.3-cm reflector + CCD); 27.14, 10.5, 3'.5 (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 26.57, 9.8, 4' (C. Wyatt, Walcha, NSW, Australia, 20-cm reflector); 25.63, 10.7, 3'.5 (K. Yoshimoto, Yamaguchi, Japan, 0.25-m reflector); 25.50, 11.4, 2' (C. Wyatt, Walcha, NSW, Australia, 35cm Reflector); 25.04, 10.1, 7' (M. Lehky, Hradec Kralove, Czech Republic, 0.42-m reflector); 24.82, 11.8, 1'.2 (S. Borysenko, Holoven'ky, Ukraine, 8-cm refractor + CCD) 24.04, 10.1, 7'.5 (M. Lehky, Hradec Kralove, Czech Republic, 0.42-m reflector); 23.86, 10.1, 5' (U. Pilz, Leipzig, Germany, 12-cm refractor); 23.44, 10.2, 8' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 22.60, 11.0, 3'.7 (K. Yoshimoto, Yamaguchi, Japan, 0.25-m reflector); 21.97, 10.4, 3' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 21.90, 9.8, 4' (V. Nevski, Vitebsk, Belarus, 0.30-m reflector); 21.82, 11.7, 1'.4 (S. Borysenko, Holoven'ky, Ukraine, 8-cm refractor + CCD) 20.98, 10.1, 8' (M. Lehky, Hradec Kralove, Czech Republic, 0.42-m reflector); 20.96, 11.0, 3'.6 (J. Srba, Mikuluvka, Czech Republic, 6.3-cm reflector + CCD); 20.01, 10.3, 3' (M. L. Paradowski, Lublin, Poland, 0.20-m reflector; city lights); 19.99, 10.0, 8' (M. Lehky, Hradec Kralove, Czech Republic, 0.42-m reflector); 19.01, 10.3, 4' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 18.99, 10.0, 8' (M. Lehky, Hradec Kralove, Czech Republic, 0.42-m reflector); 18.89, 11.2, 1'.5 (V. M. Ivanov, Saratov, Russia, 270-mm reflector); 17.89, 11.0, 2' (V. M. Ivanov, Saratov, Russia, 275-mm reflector); 17.12, 10.4, 4' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 16.92, 11.3, 2'.3 (J. Srba, Mikuluvka, Czech Republic, 6.3-cm reflector + CCD); 16.44, 10.5, 8' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 15.56, 10.9, 2'.5 (C. Wyatt, Walcha, NSW, Australia, 20-cm reflector); 15.54, 11.3, 1'.7 (Y. Nagai, Kanagawa, Japan, 300-mm camera lens + CCD); 14.49, 10.8, 5' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 14.13, 10.4, 4' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 11.91, 10.2, 4' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 1.33, 10.6, 3'.5 (M. Goiato, Aracatuba, Brazil, 22-cm reflector); July 30.98, 9.0, 6' (V. Nevski, Vitebsk, Belarus, 0.11-m binoculars); 30.19, 10.7, 3'.5 (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 26.58, 10.9, 4'.2 (Y. Nagai, Kanagawa, Japan, 300-mm camera lens + CCD); 25.08, 10.4, 4' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 24.72, 10.1, 4' (C. Wyatt, Walcha, NSW, Australia, 20-cm reflector); 24.08, 10.4, 4' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 22.87, 10.5, 2' (V. M. Ivanov, Saratov, Russia, 200-mm reflector); 20.98, 11.4, 2'.7 (W. Hasubick, Buchloe, Germany, 44-cm reflector); 19.73, 9.9, 8' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 19.06, 10.3, 4'.5 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 18.01, 10.3, 4' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 16.17, 10.2, 4' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 15.63, 10.9, 5'.0 (Y. Nagai, Kanagawa, Japan, 300-mm camera lens + CCD); 4.03, 9.9, 1' (A. Diepvens, Balen, Belgium, 0.20-m refractor); 3.10, 9.8, 6' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); June 29.61, 10.0, 9'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 29.17, 9.7, 7' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 24.65, 9.8, < 10' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 22.67, 9.9, 13' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 21.38, 10.0, -- (A. Amorim, Florianopolis, Brazil, 0.18-m reflector); 21.27, 9.5, 7' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 21.09, 9.4, 8' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 20.31, 10.0, -- (A. Amorim, Florianopolis, Brazil, 0.18-m reflector); 19.36, 10.0, -- (A. Amorim, Florianopolis, Brazil, 0.18-m reflector); 19.17, 9.3, 8' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 18.30, 10.0, 2' (A. Amorim, Florianopolis, Brazil, 0.18-m reflector); 18.19, 9.3, 8' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 6.35, 9.8, -- (A. Amorim, Florianopolis, Brazil, 0.18-m reflector; moonlight); 5.75, 9.9, 3' (C. Wyatt, Walcha, NSW, Australia, 20-cm reflector); 5.36, 10.5, 3' (A. Amorim, Florianopolis, Brazil, 0.18-m reflector); 3.36, 9.5, 4' (A. Amorim, Florianopolis, Brazil, 0.18-m reflector); 3.31, 9.0, 12' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 1.34, 10.0, 3' (A. Amorim, Florianopolis, Brazil, 0.18-m reflector); 1.10, 9.3, 6' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); May 30.61, 9.8, 5' (C. Wyatt, Walcha, NSW, Australia, 20-cm reflector); 27.09, 9.0, 7' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 23.54, 9.5, 8'.5 (C. Wyatt, Walcha, NSW, Australia, 30-cm reflector); 23.31, 9.2, 8' (M. Goiato, Aracatuba, Brazil, 20x100 binocular); 21.32, 10.8:, -- (A. Amorim, Florianopolis, Brazil, 0.18-m reflector); 20.25, 9.1, 8' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 19.08, 8.8, 7' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector; alt. 12 deg); 18.33, 10.0:, -- (A. Amorim, Florianopolis, Brazil, 0.18-m reflector); 7.37, 9.5, -- (A. Amorim, Florianopolis, Brazil, 0.18-m reflector); 3.29, 9.4, 7' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 2.14, 9.0, 6' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector; elongated coma); COMET 29P/SCHWASSMANN-WACHMANN Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Dec. 12.15, 12.0, 2' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); Nov. 25.72, 13.2, 0'.8 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 24.14, 11.9, 1'.5 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 18.11, 11.8, 0'.6 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 14.28, 11.9, 1'.5 (M. Goiato, Aracatuba, Brazil, 22-cm reflector); Oct. 26.21, 11.3, 3' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector; zodiacal light); Sep. 29.20, 11.5, 1'.5 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 23.19, 11.7, 0'.7 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); COMET 30P/Reinmuth Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Dec. 24.12, 13.4, 0'.4 (M. Goiato, Aracatuba, Brazil, 22-cm reflector); Nov. 26.94, 15.6, 0'.6 (A. Baransky, Lisnyky, Ukraine, 0.70-m reflector + CCD); 24.08, 15.2, 0'.2 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 18.92, 16.0, 0'.2 (T. Scarmato, Calabria, Italy, 25-cm reflector + CCD + R_c filter); COMET 33P/Daniel Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Feb. 25.85, 13.7, 0'.7 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 22.87, 13.5, 1'.2 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 20.91, 14.4, 0'.4 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector; in outburst); COMET 43P/Wolf-Harrington Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Sep. 16.15, 17.4, 0'.3 (D. Chestnov, remotely, 0.36-m reflector near Mayhill, NM, U.S.A., + CCD); 10.83, 17.5, 0'.3 (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD); COMET 47P/Ashbrook-Jackson Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Nov. 26.87, 17.4, 0'.3 (A. Baransky, Lisnyky, Ukraine, 0.70-m reflector + CCD); Oct. 16.00, 18.6, 0'.2 (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD); Sep. 16.04, 18.5, 0'.2 (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD); 15.35, 17.4, 0'.2 (D. Chestnov, remotely from near Mayhill, NM, U.S.A., 0.41-m reflector + CCD); Aug. 22.02, 17.8, 0'.2 (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD); 3.38, 17.8:, & 0'.3 (D. Chestnov, remotely from near Mayhill, NM, U.S.A., 0.21-m refractor + CCD; moonlight); COMET 64P/Swift-Gehrels Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Sep. 16.46, 15.0, 0'.5 (D. Chestnov, remotely from near Mayhill, NM, U.S.A., 0.41-m reflector + CCD); July 25.15, 12.8, 0'.4 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); COMET 65P/GUNN Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 July 24.91, 12.5, 1'.0 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 14.91, 12.7, 0'.6 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); June 22.19, 13.8, 0'.5 (D. Chestnov, remotely from near Mayhill, NM, U.S.A., 0.21-m refractor + CCD); 20.93, 12.7, 1'.2 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 17.88, 14.2, -- (J. Srba, Mikuluvka, Czech Republic, 6.3-cm reflector + CCD + R filter; low altitude); 13.84, 12.7, 0'.8 (T. Scarmato, Calabria, Italy, 25-cm reflector + CCD); 12.85, 13.4, 0'.8 (T. Scarmato, Calabria, Italy, 25-cm reflector + CCD); 5.87, 13.9, 0'.8 (T. Scarmato, Calabria, Italy, 25-cm reflector + CCD); 1.05, 12.7, 1'.2 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); May 25.90, 13.6, 0'.6 (M. Lehky, Hradec Kralove, Czech Republic, 0.42-m reflector); 21.98, 13.3, 0'5 (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 2.08, 12.9, 1'.2 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); COMET 67P/Churyumov-Gerasimenko Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 May 26.92, 9.7, 7' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector; zodiacal light); 24.92, 10.5, 2'.5 (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 21.90, 10.5:, -- (A. Amorim, Florianopolis, Brazil, 0.18-m reflector); 18.91, 9.8, 5' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector; zodiacal light); COMET 74P/Smirnova-Chernykh Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Apr. 10.78, 16.2, 0'.5 (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD); Mar. 22.03, 14.5, 0'.3 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); Feb. 1.94, 15.6, 0'.4 (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD); COMET 77P/Longmore Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Apr. 24.83, 14.3, 0'.8 (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD); 19.86, 14.5, 0'.7 (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD); 13.84, 13.7, 0'.6 (W. Hasubick, Buchloe, Germany, 44-cm reflector); Mar. 22.04, 14.2, 0'.5 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 3.21, 13.7, 0'.7 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); Feb. 2.04, 15.7, 0'.3 (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD); COMET 81P/Wild Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Dec. 29.21, 10.3, 2'.9 (M. Meyer, Limburg, Germany, 15-cm refractor); 27.17, 10.4, 2'.6 (M. L. Paradowski, Lublin, Poland, 0.20-m reflector; city lights); 27.08, 10.5, 2' (U. Pilz, Leipzig, Germany, 32-cm reflector); 26.26, 11.6, 1' (A. Diepvens, Balen, Belgium, 0.20-m refractor); 26.23, 10.5, 2'.8 (M. Meyer, Limburg, Germany, 15-cm refractor); 19.28, 11.3, 2' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 12.16, 10.3, 4' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); Nov. 25.71, 11.8, 4'.8 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 24.17, 10.5, 4'.5 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 21.73, 10.8, 1'.2 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 18.14, 10.7, 3'.5 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 16.72, 11.1, 5'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 15.69, 11.4, 2'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 14.30, 12.1, 0'.8 (M. Goiato, Aracatuba, Brazil, 22-cm reflector); Oct. 26.20, 11.2, 4' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector; zodiacal light); 16.18, 11.8, 2' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector; zodiacal light); Sep. 29.19, 12.2, 2' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 23.16, 12.3, 2' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 20.80, 13.7, 0'.4 (S. Yoshida, Gunma, Japan, 0.40-m reflector); 16.45, 14.9, 0'.4 (D. Chestnov, remotely from near Mayhill, NM, U.S.A., 0.41-m reflector + CCD); Aug. 21.06, [13.4, -- (J. Srba, Mikuluvka, Czech Republic, 6.3-cm reflector + CCD; low altitude); COMET 88P/Howell Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Dec. 20.97, 9.7:, 3' (M. Goiato, Aracatuba, Brazil, 22-cm reflector; moonlight); 17.97, 9.6, 5' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 6.96, 8.9, 3' (A. Amorim, Florianopolis, Brazil, 0.18-m reflector); 4.78, 8.6, 6' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 2.96, 9.7:, 3' (M. Goiato, Aracatuba, Brazil, 22-cm reflector; clouds and moonlight); Nov. 21.42, 9.3, 3' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 20.45, 9.8, 3' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 18.78, 8.4, 7' (J. J. Gonzalez, Asturias, Spain, 0.20-m reflector); 16.39, 8.6, 6'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 15.41, 8.5, 6'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 13.98, 9.4, 4' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 12.98, 9.4, 3' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 12.44, 9.2, 5'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 11.40, 9.4, 4'.8 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 10.40, 8.8, 4'.8 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 9.39, 8.9, 6'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 4.98, 9.1, 4' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 3.96, 9.2, 4' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 3.39, 10.1, 1'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 2.95, 9.0, -- (A. Amorim, Florianopolis, Brazil, 20x80 binoculars; moonlight and clouds); 2.93, 8.8:, 3' (W. Souza, Sao Paulo, Brazil, 20x80 binoculars); 1.38, 9.2, 5'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); Oct. 31.39, 8.4, 6'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 29.94, 8.8, 4' (M. Goiato, Aracatuba, Brazil, 22-cm reflector; moonlight); 23.94, 8.6, 5' (M. Goiato, Aracatuba, Brazil, 22-cm reflector; moonlight); 20.98, 8.4, 7' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 20.45, 9.0, 6'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 18.94, 8.6, 5' (M. Goiato, Aracatuba, Brazil, 22-cm reflector; clouds); 18.39, 8.2, 5'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 18.22, 9.2, 4.0' (M. Linnolt, Dillingham, Hawaii, 0.20-m reflector); 17.41, 8.3, 5'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 16.39, 8.3, 5'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 15.96, 8.6, 6' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars; clouds); 13.93, 8.6, 3' (A. Amorim, Florianopolis, Brazil, 7.6-cm reflector); 13.40, 8.8, 5'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 13.10, 8.5, 1'.5 (C. W. Hergenrother, Tucson, Arizona, 0.31-m reflector; low altitude); 11.94, 8.5, 7' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 11.79, 8.6, 4' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector; alt. 10 deg); 10.96, 8.6, 7' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 9.98, 8.6, 8' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 8.38, 8.2, 6'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 6.94, 8.6, 8' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 6.38, 7.8, 6'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 3.93, 8.8, 4' (M. Goiato, Aracatuba, Brazil, 22-cm reflector; moonlight); Sep. 27.95, 8.7, 6' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars; moonlight); 25.94, 8.8, 6' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars; moonlight); 25.93, 9.0, 2' (A. Amorim, Florianopolis, Brazil, 0.076-m reflector); 24.94, 8.8, 6' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars; moonlight); 24.40, 8.6, 6'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 22.83, 8.6, 6' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector; alt. 7 deg); 20.41, 8.9, 3'.1 (S. Yoshida, Gunma, Japan, 0.40-m reflector); 20.27, 8.7, 4'.5 (M. Linnolt, Dillingham, HI, U.S.A., 0.20-m reflector); 19.44, 9.5, 5' (K. Yoshimoto, Yamaguchi, Japan, 37x100 binoculars); 18.38, 8.7, 6'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 17.94, 9.2, 5' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 17.40, 7.5, 7' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 15.94, 9.2, 5' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 14.83, 9.2, 5' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector; alt. 8 deg); 13.94, 9.3, 4' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars); 13.40, 8.1, 7' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 13.26, 9.3, 3'.5 (M. Linnolt, Dillingham, HI, U.S.A., 0.20-m reflector); 12.95, 9.4, 4' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 12.37, 8.4, 6'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 11.94, 9.3, 5' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 11.40, 8.4, 8' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 9.45, 9.4, 4' (K. Yoshimoto, Yamaguchi, Japan, 37x100 binoculars); 9.40, 9.1, 6'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 6.36, 9.1, 6' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 5.39, 9.2, 6' (C. Wyatt, Walcha, NSW, Australia, 20cm Reflector); Aug. 23.37, 9.2, 8' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 22.94, 10.4, 3' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 21.87, 9.8, 5' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector; alt. 8 deg); 16.39, 9.9, 3'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 15.42, 10.2, 5' (C. Wyatt, Walcha, NSW, Australia, 20-cm reflector); 14.40, 9.4, 9'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 13.96, 10.6, 3' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 12.92, 9.8, -- (A. Amorim, Florianopolis, Brazil, 20x80 binoculars); 11.92, 9.8, 2' (A. Amorim, Florianopolis, Brazil, 0.18-m reflector); 11.89, 10.5, 5' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector; alt. 10 deg); 8.96, 11.2, 2' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); July 23.39, 9.6, 8'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 21.38, 10.7, 4' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 20.39, 9.5, 6' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 19.94, 12.7, 1'25 (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 19.38, 11.5, 5' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 15.18, 13.6, 1'.8 (S. Shurpakov, remotely from near Mayhill, NM, U.S.A., 0.21-m refractor + CCD); 14.93, 12.8, 0'.6 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); June 20.96, 13.0, 0'.7 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 17.94, 13.2, 0'.7 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 17.90, [13.8, -- (J. Srba, Mikuluvka, Czech Republic, 6.3-cm reflector + CCD + R filter; low altitude); COMET 116P/Wild Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 July 12.95, 11.9, 2' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); June 20.94, 11.5, 1'.5 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 17.93, 11.7, 1'.5 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 14.94, 11.1, 2' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 13.82, 12.2, 0'.9 (T. Scarmato, Calabria, Italy, 25-cm reflector + CCD); 12.93, 11.1, 2' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 12.82, 14.1, 0'.7 (T. Scarmato, Calabria, Italy, 25-cm reflector + CCD); 5.80, 13.6, 0'.9 (T. Scarmato, Calabria, Italy, 25-cm reflector + CCD); 2.93, 10.5:, -- (A. Amorim, Florianopolis, Brazil, 0.18-m reflector; moonlight); May 26.98, 11.3, 2'.0 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 25.88, 11.3, 2' (M. Lehky, Hradec Kralove, Czech Republic, 0.42-m reflector); 23.98, 10.8, 2'5 (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 21.92, 11.0:, -- (A. Amorim, Florianopolis, Brazil, 0.18-m reflector); 20.94, 11.3:, -- (A. Amorim, Florianopolis, Brazil, 0.18-m reflector); 18.95, 11.0, 3'.5 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 15.96, 11.3, 2'.5 (M. Goiato, Aracatuba, Brazil, 22-cm reflector); COMET 118P/Shoemaker-Levy Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Dec. 18.15, 12.8, 1' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 16.21, 12.7:, 1' (M. Goiato, Aracatuba, Brazil, 22-cm reflector; clouds); 12.03, 13.3, 0'.5 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); Nov. 27.12, 13.7, 0'.6 (A. Baransky, Lisnyky, Ukraine, 0.70-m reflector + CCD); 19.92, 13.3, 1'.0 (M. Lehky, Hradec Kralove, Czech Republic, 0.42-m reflector); 18.98, 13.8, 0'.4 (T. Scarmato, Calabria, Italy, 25-cm reflector + CCD + R_c filter); 18.19, 13.5, 0'.6 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); Oct. 26.04, 13.6, 0'.7 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); Sep. 20.76, [14.3, ! 0'.3 (S. Yoshida, Gunma, Japan, 0.40-m reflector); COMET 126P/IRAS Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Aug. 25.48, 16.9, 0'.23 (D. Chestnov, remotely from near Pingelly, W. Australia, 0.15-m refractor + CCD); COMET 127P/Holt-Olmstead Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Sep. 15.96, 17.0, 0'.2 (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD); COMET 137P/Shoemaker-Levy Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Nov. 27.00, 18.0, 0'.2 (A. Baransky, Lisnyky, Ukraine, 0.70-m reflector + CCD); COMET 144P/Kushida Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Apr. 28.87, 12.0, 1'.5 (M. Lehky, Hradec Kralove, Czech Republic, 0.42-m reflector); 25.91, [12.2, ! 1' (M. L. Paradowski, Szabalowa Gora, Poland, 0.20-m reflector; alt. 18 deg); 25.87, 11.9, 1'.7 (M. Lehky, Hradec Kralove, Czech Republic, 0.42-m reflector); 21.84, 11.7, 3' (U. Pilz, Leipzig, Germany, 12-cm refractor); 20.93, 10.1, 5' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 15.96, 11.8, 2' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 12.90, 10.7, 3'.3 (W. Hasubick, Buchloe, Germany, 44-cm reflector); 11.85, 10.8, 3' (M. Lehky, Pasinovice, Czech Republic, 0.20-m reflector); 10.84, 10.8, 3' (M. Lehky, Ledenice, Czech Republic, 0.20-m reflector); COMET 157P/Tritton Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Nov. 21.82, 17.3, 0'.2 (J. Qvam, Borrevannet, Horten, Norway, 0.46-m reflector + CCD + V filter); Sep. 14.91, 17.8, 0'.2 (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD); COMET 169P/NEAT Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Nov. 21.41, 11.6, 1'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 18.77, 9.2, 4' (J. J. Gonzalez, Asturias, Spain, 0.20-m reflector); COMET 199P/2008 G2 (Shoemaker) Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Aug. 21.62, 15.2, 0'.7 (D. Chestnov, remotely from near Pingelly, W. Australia, 0.15-m refractor + CCD; thin clouds); July 30.49, 15.2, < 0'.4 (D. Chestnov, remotely from near Pingelly, W. Australia, 0.15-m refractor + CCD); 21.55, 15.1, 0'.5 (D. Chestnov, remotely from near Pingelly, W. Australia, 0.15-m refractor + CCD); 13.39, 14.6, 0'.5 (D. Chestnov, remotely from near Mayhill, NM, U.S.A., 0.36-m reflector + CCD; moonlight); 12.55, 15.1, 0'.5 (D. Chestnov, remotely from near Mayhill, NM, U.S.A., 0.36-m reflector + CCD); COMET 203P/Korlevic Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Nov. 26.98, 16.3, 0'.7 (A. Baransky, Lisnyky, Ukraine, 0.70-m reflector + CCD); Oct. 16.02, 17.2, 0'.2 (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD); Sep. 16.06, 17.6, 0'.2 (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD); COMET 209P/2008 X2 (LINEAR) Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 June 21.70, [16.0, -- (D. Chestnov, remotely from near Pingelly, Western Australia, 0.36-m reflector + CCD); May 2.16, 13.8, 0'.6 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); COMET 210P/2008 X4 (Christensen) Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Mar. 22.14, 13.7, 1'.0 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); Jan. 27.87, 13.2, 1'.0 (K. Yoshimoto, Hirao, Yamaguchi, Japan, 16-cm reflector + CCD); 24.21, 11.6, 0'.9 (W. Hasubick, Buchloe, Germany, 44-cm reflector); 4.87, 10.3, 3' (K. Yoshimoto, Yamaguchi, Japan, 0.25-m reflector); 4.26, 10.1, 2'.2 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); COMET 211P/2008 X1 (Hill) Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Sep. 25.46, 10.1, 1'.5 (C. W. Hergenrother, Tucson, Arizona, 30x125 binoculars); Jan. 5.86, 17.4, 0'.3 (A. Baransky, Lisnyky, Ukraine, 0.70-m reflector + CCD); COMET 217P/2009 F3 (LINEAR) Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Dec. 18.21, 12.1, 1' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 16.89, 11.9, 2' (U. Pilz, Leipzig, Germany, 32-cm reflector); 12.99, 12.5, 2'.8 (J. Qvam, Borrevannet, Horten, Norway, 0.10-m refractor + CCD + V filter); 12.02, 11.7, 1'.5 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 6.06, 10.9:, 2' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); Nov. 25.70, 12.2, 1' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 24.03, 11.2, 1'.2 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 21.53, 11.8, 3' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 19.94, 11.0, 2'.5 (M. Lehky, Hradec Kralove, Czech Republic, 0.42-m reflector); 19.01, 11.0, 2'.5 (T. Scarmato, Calabria, Italy, 25-cm reflector + CCD + R_c filter); 18.08, 10.7, 1'.2 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 16.56, 11.9, 3' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 15.68, 12.4, 2' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 14.26, 10.6, 2'.5 (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 14.17, 10.6, 3' (U. Pilz, Leipzig, Germany, 12-cm refractor); 13.12, 10.6, 2'.5 (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 11.51, 11.4, 2' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 10.50, 11.4, 2'.4 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); Oct. 31.68, 11.3, 1'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 26.08, 10.3, 2'.5 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 24.21, 10.5, 2'.5 (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 21.17, 10.5, 2'.5 (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 20.64, 10.1, 2' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 20.13, 10.7, 2' (U. Pilz, Leipzig, Germany, 32-cm reflector); 19.69, 9.9, 5' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 19.64, 10.4, 2'.3 (Y. Nagai, Kanagawa, Japan, 300-mm camera lens + CCD); 18.63, 9.9, 2'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 18.15, 10.1, 2' (A. Diepvens, Balen, Belgium, 0.20-m refractor); 17.92, 10.5, 3' (V. M. Ivanov, Saratov, Russia, 25.4-cm reflector); 16.67, 9.3, 5' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 16.46, 9.9, 3'.5 (C. W. Hergenrother, Tucson, Arizona, 0.31-m reflector); 16.19, 10.4:, 2'.5 (M. Goiato, Aracatuba, Brazil, 22-cm reflector; near a 6th-mag star); 16.10, 10.1, 2'.5 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 15.72, 9.4, 3' (K. Yoshimoto, Yamaguchi, Japan, 20x100 binoculars); 15.09, 9.5, 3' (B. H. Granslo, Fjellhamar, Norway, 0.10-m refractor); 14.66, 9.4, 1'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 14.06, 9.6, 2' (B. H. Granslo, Fjellhamar, Norway, 0.10-m refractor); 10.15, 10.4, 3' (M. Goiato, Aracatuba, Brazil, 22-cm reflector; moonlight); Sep. 30.73, 10.6, 1'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 29.13, 9.9, 3'.5 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 27.14, 10.2, 2'.6 (M. Meyer, Limburg, Germany, 25-cm reflector); 26.29, 10.2, 2' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 26.14, 10.1, 3' (M. Meyer, Limburg, Germany, 15-cm refractor); 24.76, 9.8, 4' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 23.14, 9.8, 4' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 21.08, 11.1, 1'.5 (M. L. Paradowski, Lublin, Poland, 0.20-m reflector; city lights); 20.75, 10.2, 4'.0 (S. Yoshida, Gunma, Japan, 0.40-m reflector); 20.11, 9.9, 3' (U. Pilz, Leipzig, Germany, 32-cm reflector); 13.68, 10.6, 1' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 13.29, 10.5, 1'.5 (M. Goiato, Aracatuba, Brazil, 22-cm reflector; moonlight); 12.57, 10.6, 2'.5 (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 1.14, 11.0, 1' (A. Diepvens, Balen, Belgium, 20-cm refractor); Aug. 31.74, 9.8, 4' (C. Wyatt,Walcha, NSW, Australia, 20-cm reflector); 31.15, 9.9, 4' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 30.10, 9.8, 4' (M. Meyer, Limburg, Germany, 15-cm refractor); 29.33, 10.9, 2' (M. Goiato, Aracatuba, Brazil, 22-cm reflector); 29.16, 10.2, 3' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 28.08, 10.2, 4' (M. Lehky, Hradec Kralove, Czech Republic, 0.42-m reflector); 26.61, 9.9, 3' (C. Wyatt, Walcha, NSW, Australia, 20-cm reflector); 25.77, 10.7, 2'.5 (K. Yoshimoto, Yamaguchi, Japan, 0.25-m reflector); 25.71, 10.0, 4' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 25.08, 10.0, 4' (M. Lehky, Hradec Kralove, Czech Republic, 0.42-m reflector); 25.07, 11.6, 1'.2 (W. Hasubick, Buchloe, Germany, 44-cm reflector); 25.06, 10.3, 2' (U. Pilz, Leipzig, Germany, 32-cm reflector); 24.09, 10.1, 3' (M. Lehky, Hradec Kralove, Czech Republic, 0.42-m reflector); 24.08, 10.2, 3' (M. Meyer, Limburg, Germany, 15-cm refractor); 23.75, 9.7, 4' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 22.77, 10.4, 3'.0 (K. Yoshimoto, Yamaguchi, Japan, 0.25-m reflector); 21.08, 10.2, 3' (M. Lehky, Hradec Kralove, Czech Republic, 0.42-m reflector); 21.02, 11.1, 2'.9 (J. Srba, Mikuluvka, Czech Republic, 6.3-cm reflector + CCD); 20.08, 10.2, 3' (M. Lehky, Hradec Kralove, Czech Republic, 0.42-m reflector); 20.04, 11.7, 0'.9 (M. L. Paradowski, Lublin, Poland, 0.20-m reflector; city lights); 19.10, 10.1, 4' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 15.61, 11.0, 2' (C. Wyatt, Walcha, NSW, Australia, 20-cm reflector); 1.35, 11.5, 1'.5 (M. Goiato, Aracatuba, Brazil, 22-cm reflector); July 25.09, 11.3, 1'.2 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 24.73, 11.9, 3' (C. Wyatt, Walcha, NSW, Australia, 20-cm reflector); 24.10, 11.4, 1'.5 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 19.76, 10.6, 5' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 19.07, 11.6, 1'.5 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 18.10, 11.5, 1'.3 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 3.11, 13.1, 1'.2 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); June 29.62, 12.5, 1' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector); 21.10, 13.8, 0'.6 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); May 27.12, 14.6, 0'.6 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); COMET 219P/2009 H1 (LINEAR) Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 July 11.33, 17.6, 0'.40 (D. Chestnov, remotely from near Mayhill, NM, U.S.A., 0.36-m reflector + CCD); 8.25, 17.6, -- (D. Chestnov, remotely from near Mayhill, NM, U.S.A., 0.21-m refractor + CCD); COMET 222P/2009 MB9 (LINEAR) Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2009 Sep. 21.10, 13.0, 0'.3 (M. L. Paradowski, Lublin, Poland; city lights); 20.79, 13.6, 0'.8 (S. Yoshida, Gunma, Japan, 0.40-m reflector); 16.43, 14.8, 0'.8 (D. Chestnov, remotely from near Mayhill, NM, U.S.A., 0.41-m reflector + CCD); Aug. 31.18, 12.3, 0'.7 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
ICQ
