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 Indeed, it is not uncommon that photometric data listed below are actually withdrawn by observers (or the ICQ Editor) due to problems, and sometimes substantial changes are made to the magnitudes before publication in the ICQ.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
June 17.23, 14.7, 1'.0 (D. Chestnov and A. Novichonok, remotely from near Mayhill, NM, U.S.A., 0.18-m refractor + CCD);
     13.87, 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);
Apr. 28.94, 14.0, 0'.6 (M. Lehky, Hradec Kralove, Czech Republic, 0.42-m reflector);
     25.96, 13.9, 0'.6 (M. Lehky, Hradec Kralove, Czech Republic, 0.42-m reflector);
     25.11, 11.7, 1' (A. Diepvens, Balen, Belgium, 0.20-m refractor);
     21.91, 14.5, 1' (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD);
     21.04, 13.7, 0'.8 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
Mar. 26.96, 13.0, 1'.2 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
     22.08, 13.5, 1'.2 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
     20.94, 13.3, 1'.2 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
Feb.  2.14, 14.2, 1' (V. Nevski, Vitebsk, Belarus, 0.30-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);
Apr. 28.84, 12.4, 1'.5 (M. Lehky, Hradec Kralove, Czech Republic, 0.42-m reflector);
     25.84, 12.3, 1'.5 (M. Lehky, Hradec Kralove, Czech Republic, 0.42-m reflector);
     20.94, 12.0, 1'.5 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
     15.84, 12.1, 1'.5 (M. Lehky, Hradec Kralove, Czech Republic, 0.20-m reflector);
     11.90, 11.5, -- (W. Souza, Joaquim Egidio, Brazil, 0.27-m reflector);
     11.90, 11.8, 2' (J. G. de S. Aguiar, Joaquim Egidio, Brazil, 0.27-m reflector);
Mar. 26.97, 11.5, 1'.5 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
     21.92, 11.3, 1'.3 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
     21.77, 12.0, 1'.5 (M. Lehky, Hradec Kralove, Czech Republic, 0.42-reflector);
     21.06, 11.9, 1'.0 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
     13.89, 11.5, 1'.0 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
      4.89, 12.5, 0'.80 (S. Shurpakov, Baran', Belarus, 0.08-m refractor + CCD);
      1.78, 11.9, -- (U. Pilz, Leipzig, Germany, 32-cm reflector);
Feb. 28.97, 11.5:, 1'.5 (M. Goiato, Aracatuba, Brazil, 22-cm reflector);
     28.76, 12.7, 1'.1 (T. Scarmato, Calabria, Italy, 25-cm reflector + CCD);
     27.98, 11.5, 1'.8 (T. Karhula, Virsbo, Sweden, 25x100 binoculars);
     26.86, 11.9, 2'.8 (J. Qvam, Borrevannet, Horten, Norway, 0.10-m refractor + CCD + V filter);
     25.93, 11.2, 1'.5 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
     22.93, 11.2, 2'.0 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
     21.81, 12.2, 0'.83 (T. Scarmato, Calabria, Italy, 25-cm reflector + CCD);
     19.99, 11.1:, 2' (M. Goiato, Aracatuba, Brazil, 22-cm reflector);
     18.89, 11.6, 1' (S. Shurpakov, Baran', Belarus, 0.08-m refractor + CCD);
     18.83, 11.5, 1' (A. Diepvens, Balen, Belgium, 0.20-m refractor);
     14.97, 10.7, 1'.5 (M. Goiato, Aracatuba, Brazil, 0.22-m reflector);
     13.92, 10.9, 1'.5 (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
June 17.88, 14.7, 1' (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD);
     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);
Apr. 28.98, 14.0, 0'.6 (M. Lehky, Hradec Kralove, Czech Republic, 0.42-m reflector);
     26.00, 14.0, 0'.6 (M. Lehky, Hradec Kralove, Czech Republic, 0.42-m reflector);
     25.00, 14.0, 0'.5 (M. Lehky, Hradec Kralove, Czech Republic, 0.42-m reflector);
     21.07, 13.5, 0'.8 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
     19.99, 14.1, 1' (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD);
Mar. 22.11, 13.7, 0'.8 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
     21.00, 13.5, 0'.8 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
Jan. 27.80, 13.3, 1'.2 (K. Yoshimoto, Hirao, Yamaguchi, Japan, 16-cm reflector + CCD);
 
 
COMET C/2006 S3 (LONEOS)
     Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2008
Nov.  3.76, 17.3, 0'.27 (S. Shurpakov, Baran', Belarus, 0.19-m reflector + CCD);
Oct. 20.79, 17.4, 0'.27 (S. Shurpakov, Baran', Belarus, 0.19-m 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
June 21.34, 8.7, 2' (A. Amorim, Florianopolis, Brazil, 20x80 binoculars);
     21.28, 8.7, 5' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars);
     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);
     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);
     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);
     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);
     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);
Apr. 29.08, 8.8, 5'.5 (M. Lehky, Hradec Kralove, Czech Republic, 25x100 binoculars);
     26.08, 8.8, 5'.5 (M. Lehky, Hradec Kralove, Czech Republic, 25x100 binoculars);
     26.05, 9.1, 3'.5 (K. Hornoch, Vohancice, Czech Republic, 0.13-m reflector);
     25.11, 8.8, 2' (A. Diepvens, Balen, Belgium, 0.20-m refractor);
     25.08, 8.8, 5'.5 (M. Lehky, Hradec Kralove, Czech Republic, 25x100 binoculars);
     21.09, 8.9, 4' (J. J. Gonzalez, Leon, Spain, 25x100 binoculars);
     20.17, 9.2, 3' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
     15.09, 9.1, 5' (M. Lehky, Hradec Kralove, Czech Republic, 25x100 binoculars);
      6.18, 9.3, 4' (J. J. Gonzalez, Burgos, Spain, 0.15-m reflector);
Mar. 22.20, 9.2, 4' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
     21.15, 9.3, 4' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
      3.23, 9.6, 2'.5 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
 
 
COMET C/2007 B2 (Skiff)
     Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2008
Aug.  3.95, 13.9, +0'.65 (L. A. Mansilla and F. Tifner, Rosario, Argentina, 0.25-m reflector + CCD);
 
 
COMET C/2007 G1 (LINEAR)
     Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2008
Aug. 24.97, 11.8, 2' (M. Goiato, Aracatuba, Brazil, 22-cm reflector);
      1.90, 10.8, 2'.5 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector; alt. 9 deg);
 
 
COMET C/2007 N3 (Lulin)
     Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2009
May  16.93, 11.4, 1'.5 (M. Goiato, Aracatuba, Brazil, 22-cm reflector);
Apr. 28.83, 9.9, 3' (M. Lehky, Hradec Kralove, Czech Republic, 0.20-m reflector; moonlight);
     26.95, 10.5, 3' (M. Goiato, Aracatuba, Brazil, 22-cm reflector);
     25.88, 10.7, & 1' (M. L. Paradowski, Szabalowa Gora, Poland, 0.20-m reflector; alt. 15 deg);
     25.83, 9.8, 3'.5 (M. Lehky, Hradec Kralove, Czech Republic, 0.20-m reflector);
     25.41, 10.8, < 4' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector);
     24.83, 9.7, 3'.5 (M. Lehky, Hradec Kralove, Czech Republic, 0.20-m reflector);
     21.94, 10.0, 4' (M. Goiato, Aracatuba, Brazil, 22-cm reflector);
     20.91, 9.7, 5' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
     19.85, 9.8, 3'.9 (M. Meyer, Limburg, Germany, 15-cm refractor);
     18.81, 10.5, 3' (U. Pilz, Leipzig, Germany, 32-cm reflector);
     17.94, 10.0, 1' (A. Amorim, Florianopolis, Brazil, 0.18-m reflector);
     15.94, 9.3, 5' (M. Goiato, Aracatuba, Brazil, 22-cm reflector);
     15.85, 9.4, 4'.4 (M. Meyer, Frauenstein, Germany, 15-cm refractor);
     14.85, 9.7, 4'.0 (M. Meyer, Frauenstein, Germany, 15-cm refractor);
     13.85, 9.4, 4'.5 (M. Meyer, Frauenstein, Germany, 15-cm refractor);
     12.95, 9.9, 1' (A. Amorim, Florianopolis, Brazil, 0.18-m reflector);
     12.90, 10.0, 3'.0 (W. Hasubick, Buchloe, Germany, 44-cm reflector);
     12.89, 8.7, 5' (J. J. Gonzalez, Leon, Spain, 25x100 binoculars);
     11.95, 9.0, -- (W. Souza, Joaquim Egidio, Brazil, 0.27-m reflector);
     11.95, 9.2, 3' (J. G. de S. Aguiar, Joaquim Egidio, Brazil, 0.27-m reflector);
     11.93, 10.0:, -- (A. Amorim, Florianopolis, Brazil, 0.18-m reflector);
     10.94, 9.0, 7' (M. Goiato, Aracatuba, Brazil, 22-cm reflector; moonlight);
      7.81, 8.8, 4' (M. Lehky, Hradec Kralove, Czech Republic, 25x100 binoculars; moonlight);
      2.96, 8.9, 4' (M. Goiato, Aracatuba, Brazil, 22-cm reflector; moonlight);
      1.98, 8.8, 4' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars; moonlight);
      1.04, 8.6, 5' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars; moonlight);
Mar. 31.83, 8.3, 5' (M. Lehky, Hradec Kralove, Czech Republic, 25x100 binoculars; moonlight);
     30.98, 8.5, 6' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars);
     30.89, 8.1, 5' (J. J. Gonzalez, Leon, Spain, 25x100 binoculars);
     29.93, 8.5, 4' (A. Amorim, Florianopolis, Brazil, 0.18-m reflector);
     29.70, 7.5, 7' (V. M. Ivanov, Saratov, Russia, 25.4-cm reflector);
     28.99, 8.2, 5' (A. Amorim, Florianopolis, Brazil, 20x80 binoculars);
     27.95, 8.1, 7' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars);
     26.92, 8.2, 5' (A. Amorim, Florianopolis, Brazil, 20x80 binoculars);
     26.90, 7.9, 5' (J. J. Gonzalez, Leon, Spain, 25x100 binoculars);
     25.96, 7.5, 7' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars);
     24.80, 7.7, 11' (M. Meyer, Limburg, Germany, 10x50 binoculars);
     22.01, 6.9, 8' (J. J. Gonzalez, Leon, Spain, 10x50 binoculars; 0.3-deg dust tail in p.a. 95 deg);
     21.88, 7.4, 11' (M. Meyer, Limburg, Germany, 10x50 binoculars);
     21.86, 7.3, 15' (K. Hornoch, Ondrejov, Czech Republic, 0.07-m refractor);
     21.86, 7.2, 12' (A. Diepvens, Balen, Belgium, 20x50 binoculars);
     21.83, 6.5, 15' (M. Lehky, Hradec Kralove, Czech Republic, 10x50 binoculars);
     21.05, 6.8, 8' (J. J. Gonzalez, Leon, Spain, 10x50 binoculars; 0.3-deg dust tail in p.a. 95 deg);
     20.85, 7.1, 14' (A. Diepvens, Balen, Belgium, 20x50 binoculars);
     20.81, 7.5, 9' (M. Meyer, Limburg, Germany, 10x50 binoculars);
     19.86, 6.8, 14' (A. Diepvens, Balen, Belgium, 20x50 binoculars);
     19.86, 7.2, 8' (T. Karhula, Virsbo, Sweden, 25x100 binoculars; 0.5-deg tail in p.a. 95 deg);
     19.82, 7.1, 12' (M. Meyer, Limburg, Germany, 10x50 binoculars);
     19.82, 7.1, 12' (B. H. Granslo, Bys{\ae}termosan, Enebakk, Norway, 7x50 binoculars);
     19.77, 7.2, 7' (V. M. Ivanov, Saratov, Russia, 25-cm reflector);
     18.92, 8.7, 6'.5 (J. Qvam, Borrevannet, Horten, Norway, 0.10-m refractor + CCD + V filter);
     18.88, 6.8, 14' (A. Diepvens, Balen, Belgium, 20x50 binoculars);
     18.82, 6.9, & 9'.5 (M. Meyer, Limburg, Germany, 10x50 binoculars);
     18.80, 7.1, 10' (T. Karhula, Vasteras, Sweden, 18x50 binoculars; 0.6-deg tail in p.a. 95 deg);
     17.94, 7.0, 6' (A. Amorim, Florianopolis, Brazil, 20x80 binoculars);
     17.83, 6.8, 10'.5 (M. Meyer, Limburg, Germany, 10x50 binoculars);
     17.81, 6.5, 14' (A. Diepvens, Balen, Belgium, 20x50 binoculars);
     17.80, 8.6, 9' (U. Pilz, Leipzig, Germany, 32-cm reflector);
     17.79, 7.1, 14' (K. Hornoch, Vohancice, Czech Republic, 10x80 binoculars);
     17.75, 7.0, 5' (V. M. Ivanov, Saratov, Russia, 25-cm reflector);
     16.99, 7.0, 10' (M. Goiato, Aracatuba, Brazil, 7x50 binoculars);
     16.79, 6.5, 10' (V. M. Ivanov, Saratov, Russia, 27.5-cm reflector);
     16.78, 7.0, 14' (K. Hornoch, Vohancice, Czech Republic, 10x80 binoculars);
     15.93, 6.5, 12' (J. J. Gonzalez, Leon, Spain, 10x50 binoculars);
     15.83, 6.0, 15' (M. Lehky, Nova Vcelnice, Czech Republic, 10x50 binoculars);
     15.57, 6.5, 11' (W. Xu, Wuhan, China, 10x50 binoculars; city light pollution);
     15.44, 7.2, 7' (Y. Nagai, Kanagawa, Japan, 20x100 binoculars);
     14.98, 6.6, 5' (W. Souza, Sao Paulo, Brazil, 20x80 binoculars);
     14.96, 6.6, 7' (A. Amorim, Florianopolis, Brazil, 11x70 binoculars);
     14.86, 6.2, 13' (J. J. Gonzalez, Leon, Spain, 10x50 binoculars; 0.5-deg dust tail in p.a. 95 deg);
     14.82, 6.5, 15' (T. Scarmato, Calabria, Italy, 20x90 binoculars);
     14.80, 6.3, 9' (M. L. Paradowski, Lublin, Poland, 20x60 binoculars; city lights);
     14.75, 6.6, 7' (V. M. Ivanov, Saratov, Russia, 27.5-cm reflector);
     14.56, 6.1, 14' (W. Xu, Wuhan, China, 10x50 binoculars; city light pollution);
     13.90, 6.3, 13' (J. J. Gonzalez, Leon, Spain, 10x50 binoculars; 0.8-deg dust tail in p.a. 95 deg);
     13.82, 6.5, 10' (T. Scarmato, Calabria, Italy, 7x50 binoculars);
     13.80, 5.7, 20' (M. Lehky, Ledenice, Czech Republic, naked eye);
     13.80, 6.8, 14' (M. Meyer, Limburg, Germany, 10x50 binoculars);
     13.78, 6.8, 6' (A. Kuosmanen, Kirkkonummi, Finland, 10x50 binoculars);
     13.77, 6.8, 15' (T. Veikkolainen, J\"arvenp\"a\"a, Finland, 20-cm reflector; 0.17-deg tail in p.a. 110 deg);
     13.58, 6.0, 13' (W. Xu, Wuhan, China, 10x50 binoculars; city light pollution, moonlight);
     13.04, 6.5, 10' (M. Goiato, Aracatuba, Brazil, 7x50 binoculars; moonlight);
     12.84, 6.2, 12' (J. J. Gonzalez, Asturias, Spain, 10x50 binoculars; 0.8-deg dust tail in p.a. 100 deg);
     12.83, 6.0, 15' (J. J. Gonzalez, Asturias, Spain, naked eye);
     10.08, 6.5, 6' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars; moonlight);
      9.59, 5.8, 9' (W. Xu, Wuhan, China, 10x50 binoculars; strong moonlight; city light pollution);
      7.02, 5.8, 10' (A. Amorim, Florianopolis, Brazil, 10x50 binoculars, moonlight);
      7.02, 6.0, 14' (M. Goiato, Aracatuba, Brazil, 7x50 binoculars; moonlight);
      6.15, 5.9, 15' (W. Souza, Sao Paulo, Brazil, 7x50 binoculars);
      6.02, 5.5, 12' (A. Amorim, Florianopolis, Brazil, 10x50 binoculars; moonlight);
      6.02, 5.9, 10' (L. A. Mansilla, Rosario, Argentina, 7x50 binoculars; light pollution, moonlight);
      6.00, 5.9, 16' (M. Goiato, Aracatuba, Brazil, 7x50 binoculars; moonlight);
      6.00, 5.6, -- (J. G. de S. Aguiar, Campinas, Brazil, 20x50 binoculars);
      5.82, 5.4, 20' (T. Scarmato, Calabria, Italy, 7x50 binoculars);
      5.14, 5.8, 16' (M. Goiato, Aracatuba, Brazil, 7x50 binoculars; 0.75-deg tail in p.a. 110 deg);
      5.11, 5.6, 15' (W. Souza, Sao Paulo, Brazil, 7x50 binoculars);
      5.01, 5.4, -- (J. G. de S. Aguiar, Campinas, Brazil, 20x50 binoculars);
      4.92, 6.0, 14' (S. Shurpakov, Baran', Belarus, 8x30 binoculars);
      4.10, 5.7, 18' (M. Goiato, Aracatuba, Brazil, 7x50 binoculars; 1-deg tail in p.a. 100 deg);
      4.00, 5.4, -- (J. G. de S. Aguiar, Campinas, Brazil, 20x50 binoculars);
      3.96, 5.2, 16' (A. Diepvens, Balen, Belgium, 20x50 binoculars);
      3.88, 5.3, 20' (T. Scarmato, Calabria, Italy, 7x50 binoculars);
      3.87, 5.5, 12' (M. Meyer, Limburg, Germany, 10x50 binoculars);
      3.14, 5.3, 25' (J. J. Gonzalez, Leon, Spain, naked eye);
      3.11, 6.2, 12' (S. Aguirre, Hermosillo, Mexico, 0.20-m reflector);
      3.06, 5.5, 20' (M. Goiato, Aracatuba, Brazil, 7x50 binoculars; 1.5-deg tail in p.a. 110 deg);
      3.06, 5.6, 20' (W. Souza, Sao Paulo, Brazil, 11x80 binoculars);
      3.01, 5.3, -- (J. G. de S. Aguiar, Campinas, Brasil, 20x50 binoculars);
      2.89, 5.2, 16' (A. Diepvens, Balen, Belgium, 20x50 binoculars);
      2.86, 5.3, 13' (M. Meyer, Limburg, Germany, 10x50 binoculars);
      2.80, 6.1, 13' (Z. Rzepka, Lublin, Poland, 18x80 binoculars; city lights);
      2.52, 6.0, 14' (Y. Nagai, Kanagawa, Japan, 11x80 binoculars);
      2.11, 5.3, 20' (W. Souza, Sao Paulo, Brazil, 7x50 binoculars);
      2.10, 5.1, -- (J. G. de S. Aguiar, Campinas, Brasil, naked eye);
      2.08, 5.4, 22' (M. Goiato, Aracatuba, Brazil, 7x50 binoculars; 1-deg tail in p.a. 110 deg);
      1.80, 6.0, 12' (Z. Rzepka, Lublin, Poland, 18x80 binoculars; city lights);
      1.77, 5.7, 26' (U. Pilz, Leipzig, Germany, 10x50 binoculars);
      1.18, 5.0, 20' (W. Souza, Sao Paulo, Brazil, 11x80 binoculars; clouds);
      1.14, 5.3, 22' (M. Goiato, Aracatuba, Brazil, 7x50 binoculars; 1.25-deg tail in p.a. 110 deg);
      1.08, 5.1, -- (J. G. de S. Aguiar, Campinas, Brasil, naked eye);
Feb. 28.93, 5.8, 16' (M. L. Paradowski, Lublin, Poland, 7x50 binoculars; city lights);
     28.93, 5.2, 20' (T. Karhula, Virsbo, Sweden, 18x50 binoculars; 1.5-deg tail in p.a. 105 deg);
     28.89, 5.1, 15' (A. Diepvens, Balen, Belgium, 20x50 binoculars);
     28.87, 5.6, 15' (A. Giambersio, Potenza, Italy, 7x50 binoculars);
     28.83, 5.0, -- (T. Scarmato, Calabria, Italy, naked eye);
     28.80, 5.7, & 14' (Z. Rzepka, Lublin, Poland, 18x80 binoculars; city lights);
     28.77, 5.4, -- (W. Hasubick, Buchloe, Germany, naked eye);
     28.11, 5.3, 15' (A. Amorim, Florianopolis, Brazil, 10x50 binoculars);
     28.09, 5.1, -- (J. G. de S. Aguiar, Campinas, Brazil, naked eye);
     28.06, 5.0, 20' (W. Souza, Sao Paulo, Brazil, 8x30 binoculars);
     28.02, 6.4:, 15' (R. Kannenberg, Zurich Seebach, Switzerland, 10x50 binoculars);
     28.00, 5.3, 20' (M. Goiato, Aracatuba, Brazil, 7x50 binoculars; clouds);
     27.97  5.2  12' (B. H. Granslo, Mariholtet, Oslo, Norway, 7x50 binoculars; 1.0-deg tail in p.a. 110 deg);
     27.94, 4.9, 25' (T. Karhula, Virsbo, Sweden, 8x40 binoculars; 1.7-deg tail in p.a. 115 deg);
     27.91, 5.3, 14' (V. Gonano, Udine, Italy, 10x50 binoculars; light pollution);
     27.33, 4.9, & 20' (C. S. Morris, Fillmore, CA, U.S.A., 10x50 binoculars);
     27.10, 5.2, -- (J. G. de S. Aguiar, Campinas, Brazil, naked eye);
     27.09, 5.3, 12' (L. A. Mansilla, Rosario, Argentina, 10-cm refractor; light pollution);
     27.06, 5.3, 20' (W. Souza, Sao Paulo, Brazil, 7x50 binoculars);
     27.02, 5.3, 20' (A. Amorim, Florianopolis, Brazil, 10x50 binoculars);
     26.95, 5.0, 15' (B. H. Granslo, Blystadlia, Norway, 7x50 binoculars; 0.6-deg tail in p.a. 110 deg);
     26.91, 6.0, 13'.5 (J. Qvam, Borrevannet, Horten, Norway, 0.08-m refractor + CCD + V filter);
     26.30, 4.9:, -- (C. S. Morris, Fillmore, CA, U.S.A., 10x50 binoculars);
     26.18, 5.1, -- (W. Hasubick, Buchloe, Germany, 10x50 binoculars);
     26.11, 5.6:, 10' (R. Kannenberg, Zurich Seebach, Switzerland, 10x50 binoculars);
     26.08, 5.3, -- (J. G. de S. Aguiar, Campinas, Brazil, naked eye);
     26.08, 5.2, 15' (L. A. Mansilla, Rosario, Argentina, 10-cm refractor; light pollution);
     25.90, 5.2, 15' (T. Scarmato, Calabria, Italy, 7X50 binoculars; haze);
     25.87, 4.7, 30' (J. J. Gonzalez, Leon, Spain, naked eye);
     25.33, 4.9, & 20' (C. S. Morris, Fillmore, CA, U.S.A., 10x50 binoculars);
     25.14, 5.2, & 30' (G. Chester, Alexandria, VA, U.S.A., 7x50 binoculars);
     25.09, 5.3, 20' (J. G. de S. Aguiar, Campinas, Brazil, 20x50 binoculars);
     25.08, 4.9, -- (L. A. Mansilla, Rosario, Argentina, naked eye; dark sky);
     24.93, 5.0, -- (G. Sostero, near Attimis, Italy, naked eye);
     24.65, 4.9, 30' (C. Wyatt, Walcha, NSW, Australia, naked eye);
     24.31, 4.7, 20' (C. S. Morris, Fillmore, CA, U.S.A., 10x50 binoculars);
     24.17, 5.3, 20' (A. Amorim, Florianopolis, Brazil, 10x50 binoculars; clouds);
     24.12, 5.0, 25' (M. Goiato, Aracatuba, Brazil, 7x50 binoculars; clouds);
     23.90, 4.8, 30' (J. J. Gonzalez, Asturias, Spain, naked eye);
     23.12, 5.0, 25' (M. Goiato, Aracatuba, Brazil, 7x50 binoculars; clouds);
     23.07, 4.8, -- (T. Scarmato, Calabria, Italy, naked eye);
     23.00, 4.8, 30' (J. J. Gonzalez, Leon, Spain, naked eye);
     22.95, 5.0, 15' (B. H. Granslo, Blystadlia, Norway, 7x50 binoculars);
     22.30, 5.3, -- (A. Amorim, Florianopolis, Brazil, naked eye);
     22.29, 5.3, 18' (W. Souza, Sao Paulo, Brazil, 7x50 binoculars);
     22.27, 5.2, 30' (M. Goiato, Aracatuba, Brazil, 7x50 binoculars; 1.25-deg tail in p.a. 300 deg);
     22.13, 5.4, 25' (J. G. de S. Aguiar, Campinas, Brazil, 25x100 binoculars);
     22.03, 5.7, 12' (J. Qvam, Tenerife, Spain, 0.08-m refractor);
     21.93, 5.0, 20' (T. Scarmato, Calabria, Italy, 7x50 binoculars);
     21.76, 4.8, --  (K. Yoshimoto, Yamaguchi, Japan, naked eye);
     21.75, 5.2, 23' (Y. Nagai, Kanagawa, Japan, 7x50 binoculars);
     21.54, 5.0, -- (M. Mattiazzo, Castlemaine, Victoria, Australia, naked eye);
     21.33, 5.3, & 14' (D. W. E. Green, Lexington, MA, U.S.A., 12x50 binoculars);
     21.23, 5.3, 25' (M. Goiato, Aracatuba, Brazil, 7x50 binoculars; 1.5-deg tail in p.a. 295 deg);
     21.22, 4.9, 25' (P. Creed, Stillwell, OH, U.S.A., naked eye);
     21.19, 5.5, 15' (A. Amorim, Florianopolis, Brazil, 10x50 binoculars; clouds interfering);
     21.10, 5.4, 25' (J. G. de S. Aguiar, Campinas, Brazil, 25x100 binoculars);
     21.03, 4.9, 30' (J. J. Gonzalez, Leon, Spain, naked eye);
     21.01, 5.5, 17' (G. Pappa, Mascalucia, Sicily, Italy, 12x50 binoculars);
     20.92, 5.0, 20' (T. Scarmato, Calabria, Italy, 7X50 binoculars);
     20.77, 5.1, 16' (W. Xu, Wuhan, China, 10x50 binoculars; city light pollution);
     20.73, 4.9, 26' (K. Yoshimoto, Yamaguchi, Japan, 7x35 binoculars);
     20.62, 5.4, 23' (Y. Nagai, Kanagawa, Japan, 7x35 binoculars);
     20.52, 5.0, 20' (M. Mattiazzo, Castlemaine, Victoria, Australia, 10x50 binoculars);
     20.30, 5.4, 25' (W. Souza, Sao Paulo, Brazil, 20x80 binoculars);
     20.29, 5.4, 15' (L. A. Mansilla, Rosario, Argentina, 7x50 binoculars);
     20.20, 5.5, 20' (W. Souza, Sao Paulo, Brazil, 8x30 binoculars);
     20.16, 5.5, 18' (A. Amorim, Florianopolis, Brazil, 10x50 binoculars; clouds interfering);
     20.16, 5.5, 20' (W. Souza, Sao Paulo, Brazil, 7x50 binoculars);
     20.11, 5.4, 22' (M. Goiato, Aracatuba, Brazil, 7x50 binoculars; 1-deg tail in p.a. 300 deg);
     20.08, 5.6, 25' (J. G. de S. Aguiar, Campinas, Brazil, 25x100 binoculars);
     20.00, 5.5, 13' (F. Zucconi, Lodi, Italy, 10x70 binoculars);
     19.28, 5.4, 12' (L. A. Mansilla, Rosario, Argentina, 7x50 binoculars);
     19.14, 5.5, 20' (M. Goiato, Aracatuba, Brazil, 7x50 binoculars; 1-deg tail in p.a. 295 deg, 0.5-deg brighter anti-tail in p.a. 95 deg);
     19.07, 5.6, 25' (J. G. de S. Aguiar, Campinas, Brazil, 25x100 binoculars);
     19.00, 5.8, 15' (S. Shurpakov, Baran', Belarus, 3cm  binocular - 8x );
     18.70, 5.3, 23' (K. Yoshimoto, Yamaguchi, Japan, 7x35 binoculars);
     18.31, 5.6, 12' (W. Souza, Sao Paulo, Brazil, 8x30 binoculars);
     18.29, 5.5, 12' (L. A. Mansilla, Rosario, Argentina, 7x50 binoculars);
     18.16, 5.6, 10' (J. Qvam, Tenerife, Spain, 0.08-m refractor);
     18.14, 5.5, 18' (M. Goiato, Aracatuba, Brazil, 7x50 binoculars);
     18.10, 5.5:, 35' (R. Kannenberg, Zurich Seebach, Switzerland, 10x50 binoculars);
     18.08, 5.7, 25' (J. G. de S. Aguiar, Campinas, Brazil, 25x100 binoculars);
     18.03, 5.2, 10' (A. Diepvens, Balen, Belgium, 20x50 binoculars);
     18.02, 5.7, 12' (V. Gonano, Udine, Italy, 10x50 binoculars; light pollution);
     18.02, 5.8, 11' (F. Zucconi, Lodi, Italy, 10x70 binoculars);
     17.98, 6.0, & 12' (R. Kostenko, Poltava, Ukraine, 7.6-cm reflector);
     17.96, 5.4, -- (W. Hasubick, Buchloe, Germany, naked eye);
     17.82, 5.8, 14' (M. Reszelski, Szamotuly, Poland, 20x60 binoculars);
     17.66, 5.5, 23' (K. Yoshimoto, Yamaguchi, Japan, 7x35 binoculars);
     17.17, 5.8, 14' (M. Reszelski, Szamotuly, Poland, 20x60 binoculars);
     17.08, 5.9, 25' (J. G. de S. Aguiar, Campinas, Brazil, 25x100 binoculars);
     17.06, 5.8, 12' (F. Zucconi, Lodi, Italy, 10x70 binoculars);
     16.08, 5.6, 12' (A. Amorim, Florianopolis, Brazil, 10x50 binoculars);
     16.03, 5.3, 25' (J. J. Gonzalez, Leon, Spain, naked eye);
     15.97, 5.8, 12' (G. Pappa, Mascalucia, Sicily, Italy, 12x50 binoculars);
     15.99, 6.1, 14' (M. Martellini, Passo Croce di Stazzema, Italy, 15x80 binoculars);
     15.15, 6.0, 8' (A. Amorim, Florianopolis, Brazil, 20x80 binoculars, moonlight);
     14.19, 5.5, 10' (B. H. Granslo, Fjellhamar, Norway, 7x50 binoculars);
     12.15, 6.8, 7' (A. Amorim, Florianopolis, Brazil, 20x80 binoculars, moonlight);
     12.14, 6.8, 6' (F. Zucconi, Lodi, Italy, 10x70 binoculars);
     11.29, 6.0, 12' (M. Goiato, Aracatuba, Brazil, 7x50 binoculars; moonlight, clouds);
      9.18, 5.9, 9' (B. H. Granslo, Fjellhamar, Norway, 0.10-m refractor);
      7.86, 6.1, 11' (K. Yoshimoto, Yamaguchi, Japan, 7x35 binoculars);
      7.73, 6.3, 8' (Y. Nagai, Kanagawa, Japan, 20x100 binoculars; moonlight);
      7.32, 6.2, 12' (M. Goiato, Aracatuba, Brazil, binoculars; clouds);
      7.24, 6.2, 9' (L. A. Mansilla, Rosario, Argentina, 10-cm refractor; moonlight);
      7.17, 6.3, 12' (U. Pilz, Leipzig, Germany, 8-cm refractor);
      6.31, 6.2, 20' (J. G. de S. Aguiar, Campinas, Brazil, 25x100 binoculars);
      5.29, 6.3, 10' (A. Amorim, Florianopolis, Brazil, 10x50 binoculars);
      5.22, 6.5, 15' (A. Kammerer, Malsch, Germany, 9x63 binoculars);
      5.20, 6.4, -- (W. Hasubick, Buchloe, Germany, naked eye);
      5.19, 6.4, 10' (W. Hasubick, Buchloe, Germany, 10x50 binoculars);
      5.06, 6.3, 11' (G. Pappa, Mascalucia, Sicily, Italy, 16-cm reflector);
      4.67, 6.1, 9' (M. Mattiazzo, Castlemaine, Victoria, Australia, 10x50 binoculars);
      4.50, 6.3, 10' (C. S. Morris, Fillmore, CA, U.S.A., 10x50 binoculars);
      4.31, 6.4, 25' (J. G. de S. Aguiar, Campinas, Brazil, 25x100 binoculars);
      4.19, 6.4, 10' (W. Hasubick, Buchloe, Germany, 10x50 binoculars);
      3.73, 6.2, 8' (M. Mattiazzo, Castlemaine, Victoria, Australia, 10x50 binoculars);
      3.50, 6.2, 9' (C. S. Morris, Fillmore, CA, U.S.A., 10x50 binoculars);
      2.73, 6.3, 7' (M. Mattiazzo, Castlemaine, Victoria, Australia, 10x50 binoculars);
      2.50, 6.4, 9' (C. S. Morris, Fillmore, CA, U.S.A., 10x50 binoculars);
      1.73, 6.3, 7' (M. Mattiazzo, Castlemaine, Victoria, Australia, 10x50 binoculars);
      1.28, 6.5, 13' (A. Amorim, Florianopolis, Brazil, 10x50 binoculars);
      1.22, 6.4, 9' (J. J. Gonzalez, Cantabria, Spain, 10x50 binoculars);
 
 
COMET C/2007 Q3 (Siding Spring)
     Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2009
June 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);
Apr. 30.47, 12.7, 1' (C. Wyatt, Walcha, NSW, Australia, 35-cm reflector);
     23.96, 9.9:, 4' (M. Goiato, Aracatuba, Brazil, 22-cm reflector; very near a star of mag 9.6);
     22.96, 9.9, 5' (M. Goiato, Aracatuba, Brazil, 22-cm reflector);
     22.94, 11.0, -- (A. Amorim, Florianopolis, Brazil, 0.18-m reflector);
     21.96, 9.9, 5' (M. Goiato, Aracatuba, Brazil, 22-cm reflector);
     21.92, 10.8, 0'.5 (A. Amorim, Florianopolis, Brazil, 0.18-m reflector);
     20.92, 10.5, 0'.5 (A. Amorim, Florianopolis, Brazil, 0.18-m reflector);
     16.92, 10.2, 3' (M. Goiato, Aracatuba, Brazil, 22-cm reflector);
     16.91, 11.0, -- (A. Amorim, Florianopolis, Brazil, 0.18-m reflector);
     15.91, 10.5, -- (A. Amorim, Florianopolis, Brazil, 0.18-m reflector);
     13.96, 10.2, 3' (M. Goiato, Aracatuba, Brazil, 22-cm reflector);
     11.92, 10.8, -- (A. Amorim, Florianopolis, Brazil, 0.18-m reflector);
     10.94, 10.5:, 2'.5 (M. Goiato, Aracatuba, Brazil, 22-cm reflector; moonlight);
     26.98, 10.7, 3' (M. Goiato, Aracatuba, Brazil, 22-cm reflector);
     25.44, 11.8, < 2' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector);
     21.96, 10.8, 2' (M. Goiato, Aracatuba, Brazil, 22-cm reflector);
     17.94, 11.0, 0'.5 (A. Amorim, Florianopolis, Brazil, 0.18-m reflector);
     15.98, 11.2, 1'.5 (M. Goiato, Aracatuba, Brazil, 22-cm reflector);
     12.96, 10.5, -- (A. Amorim, Florianopolis, Brazil, 0.18-m reflector);
     11.93, 12.0, -- (W. Souza, Joaquim Egidio, Brazil, 0.27-m reflector);
     11.93, 11.9, 1' (J. G. de S. Aguiar, Joaquim Egidio, Brazil, 0.27-m reflector);
     11.92, 10.5, -- (A. Amorim, Florianopolis, Brazil, 0.18-m reflector);
Mar. 31.04, 10.4, 2'.5 (M. Goiato, Aracatuba, Brazil, 22-cm reflector);
     29.95, 11.3, 0'.5 (A. Amorim, Florianopolis, Brazil, 0.18-m reflector);
     26.87, 9.2, 6' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector; alt. 6 deg);
     21.87, 9.8, 4' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector; alt. 6 deg);
     20.85, 10.2, 3' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector; alt. 10 deg);
     13.83, 10.6, 3' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
      6.00, 11.3, 1' (M. Goiato, Aracatuba, Brazil, 22-cm reflector; moonlight);
Feb. 28.99, 11.3, 1'.2 (M. Goiato, Aracatuba, Brazil, 22-cm reflector);
     20.01, 11.6, 1'.2 (M. Goiato, Aracatuba, Brazil, 22-cm reflector);
     18.08, 11.8, 1' (M. Goiato, Aracatuba, Brazil, 0.22-m reflector);
 
 
COMET C/2007 U1 (LINEAR)
     Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2008
Nov. 25.58, 15.2, 0'.8 (K. Yoshimoto, Hirao, Yamaguchi, Japan, 16-cm reflector + CCD);
      3.81, 13.3, 0'.68 (S. Shurpakov, Baran', Belarus, 0.19-m reflector + CCD);
 
 
COMET C/2007 W1 (Boattini)
     Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2008
Nov. 22.50, [14.6, ! 0'.7 (S. Yoshida, Gunma, Japan, 0.40-m reflector);
      1.50, 13.8, 1'.0 (S. Yoshida, Gunma, Japan, 0.40-m 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 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 P/2008 L2 (Hill)
     Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2008
Nov. 18.75, 16.4, 0'.3 (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD);
      1.51, 14.5:, < 0'.2 (S. Yoshida, Gunma, Japan, 0.40-m reflector);
 
 
COMET C/2008 Q1 (Maticic)
     Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2009
June 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);
Apr. 21.91, 16.7, 0'.3 (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD);
 
 
COMET P/2008 Q2 (Ory)
     Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2008
Nov. 18.84, 14.8, 0'.8 (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD);
      1.56, 14.2, 0'.7 (S. Yoshida, Gunma, Japan, 0.40-m reflector);
 
 
COMET C/2008 Q3 (Garradd)
     Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2009
June 20.98, 7.5, -- (A. Amorim, Florianopolis, Brazil, 10x50 binoculars);
     20.93, 7.2, 14' (M. Goiato, Aracatuba, Brazil, 7x50 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);
Apr. 30.54, 9.5, 1' (C. Wyatt, Walcha, NSW, Australia, 35-cm reflector);
     29.32, 9.3, 3' (A. Amorim, Florianopolis, Brazil, 0.18-m reflector);
     28.33, 9.1, 3' (A. Amorim, Florianopolis, Brazil, 0.18-m reflector);
     27.36, 9.5, -- (A. Amorim, Florianopolis, Brazil, 0.18-m reflector);
     27.33, 8.9, 7' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars);
     26.56, 9.4, 3' (D. A. J. Seargent, The Entrance, NSW, Australia, 25x100 binoculars);
     25.65, 8.1, 6' (C. Wyatt, Walcha, NSW, Australia, 7x50 binoculars);
     25.31, 9.0, 5' (M. Goiato, Aracatuba, Brazil, 22-cm reflector; clouds);
     23.77, 8.9, 5' (C. Wyatt, Walcha, NSW, Australia, 20-cm reflector);
     23.30, 9.1, 5' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars);
     21.54, 9.6, 3' (M. Mattiazzo, Castlemaine, Victoria, Australia, 20-cm reflector; alt. 11 deg);
 
 
COMET P/2008 QP20 (LINEAR-Hill)
     Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2008
Nov. 18.79, 16.4, 0'.2 (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD);
      3.83, 16.0, 0'.32 (S. Shurpakov, Baran', Belarus, 0.19-m reflector + CCD);
 
 
COMET C/2008 R3 (LINEAR)
     Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2008
Nov.  7.71, 16.7, 0'.2 (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD);
Oct. 21.72, 16.2, 0'.2 (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD);
 
 
COMET C/2008 S3 (Boattini)
     Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2008
Nov. 18.95, 18.2, 0'.2 (A. Baransky, Lisnyky, Ukraine, 0.70-m reflector + CCD);
     10.95, 18.3, 0'.2 (A. Baransky, Lisnyky, Ukraine, 0.70-m reflector + CCD);
 
 
COMET C/2008 T2 (Cardinal)
     Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2009
June 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);
Apr. 28.82, 9.1, 3'.5 (M. Lehky, Hradec Kralove, Czech Republic, 0.20-m reflector; moonlight);
     26.94, 9.1, 5' (M. Goiato, Aracatuba, Brazil, 22-cm reflector);
     25.94, 9.4:, 3' (M. Goiato, Aracatuba, Brazil, 22-cm reflector; nearby 7th-mag star affected obs.);
     25.86, 9.5, 1'.8 (M. L. Paradowski, Szabalowa Gora, Poland, 0.20-m reflector; alt. 18 deg);
     25.86, 9.8, 2'.5 (K. Hornoch, Vohancice, Czech Republic, 0.13-m reflector);
     25.82, 9.0, 4' (M. Lehky, Hradec Kralove, Czech Republic, 0.20-m reflector);
     25.39, 8.4, 5' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector; alt 5 deg);
     24.85, 9.6, 3'.5 (K. Hornoch, Vohancice, Czech Republic, 0.13-m reflector);
     22.86, 10.4, 2'.4 (M. L. Paradowski, Dabrowica, Poland, 0.20-m reflector);
     20.90, 9.1, 6' (J. J. Gonzalez, Leon, Spain, 25x100 binoculars);
     16.93, 9.5, 5' (M. Goiato, Aracatuba, Brazil, 22-cm reflector);
     15.84, 10.1, & 4'.8 (M. Meyer, Frauenstein, Germany, 15-cm refractor);
     14.84, 10.3, & 2'.8 (M. Meyer, Frauenstein, Germany, 15-cm refractor);
     13.84, 10.1, 4'.2 (M. Meyer, Frauenstein, Germany, 15-cm refractor);
     12.90, 11.5, 1'.1 (W. Hasubick, Buchloe, Germany, 44-cm reflector);
     12.90, 9.2, 6' (J. J. Gonzalez, Leon, Spain, 25x100 binoculars);
     11.91, 10.5, -- (W. Souza, Joaquim Egidio, Brazil, 0.27-m reflector; alt. 17 deg);
     11.91, 10.1, 2' (J. G. de S. Aguiar, Joaquim Egidio, Brazil, 0.27-m reflector; alt. 17 deg);
     11.81, 10.1, 5' (U. Pilz, Leipzig, Germany, 8-cm refractor);
     10.93, 9.3, 4' (M. Goiato, Aracatuba, Brazil, 22-cm reflector);
     10.91, 11.5, 2'.8 (J. Qvam, Borrevannet, Horten, Norway, 0.10-m refractor + CCD + V filter; moonlight);
Mar. 30.93, 9.7, 3' (M. Goiato, Aracatuba, Brazil, 22-cm reflector; moonlight);
     27.93, 9.6:, 4' (M. Goiato, Aracatuba, Brazil, 22-cm reflector; twilight);
     26.92, 9.5, 8' (J. J. Gonzalez, Leon, Spain, 25x100 binoculars);
     21.91, 10.1, 5' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
     21.79, 10.0, 3'.5 (M. Lehky, Hradec Kralove, Czech Republic, 0.42-reflector);
     20.92, 10.1, 5' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
     19.86, 10.5, 3' (T. Karhula, Virsbo, Sweden, 25x100 binoculars);
     19.85, 12.5, 1' (V. M. Ivanov, Saratov, Russia, 25-cm reflector);
     17.83, 12.0:, -- (U. Pilz, Leipzig, Germany, 32-cm reflector);
     17.79, 13.1, 1' (S. Shurpakov, Baran', Belarus, 0.08-m refractor + CCD);
     15.90, 10.2, 4'.5 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
     13.87, 11.1, 3' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
Feb. 26.85, 12.7, 1'.6 (J. Qvam, Borrevannet, Horten, Norway, 0.10-m refractor + CCD + V filter);
     25.84, 11.3, 4'.0 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
     23.79, 14.3, 1'.0 (J. Qvam, Borrevannet, Horten, Norway, 0.10-m refractor + CCD + V filter);
     22.95, 11.9, 1'.7 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
     21.02, 12.2, 1'.2 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
     18.95, 13.5, 0'.92 (S. Shurpakov, Baran', Belarus, 0.08-m refractor + CCD);
     18.81, 10.6, 1' (A. Diepvens, Balen, Belgium, 0.20-m refractor);
     13.87, 12.4, 1'.2 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
 
 
COMET P/2008 T4 (Hill)
     Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2008
Nov. 18.84, 17.6, 0'.2 (A. Baransky, Lisnyky, Ukraine, 0.70-m reflector + CCD);
     18.81, 17.8, 0'.2 (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD);
Oct. 28.91, 17.5, 0'.3 (A. Baransky, Lisnyky, Ukraine, 0.70-m reflector + CCD);
 
 
COMET P/2008 U1 (McMillan)
     Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2008
Nov. 18.80, 18.1, 0'.2 (A. Baransky, Lisnyky, Ukraine, 0.70-m reflector + CCD);
 
 
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
June 21.31, 11.7:, 2' (M. Goiato, Aracatuba, Brazil, 22-cm reflector);
      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);
     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);
Apr. 22.79, 9.8, 3'.6 (K. Kadota, Ageo, Japan, 0.25-m reflector + CCD; no tail);
     10.86, 8.2, 2' (B. H. Granslo, Aarnes, Norway, 0.10-m refractor; alt. 5.5 deg);
      5.84, 7.5, 3' (J. J. Gonzalez, Leon, Spain, 25x100 binoculars; moonlight; alt. 10 deg);
      2.85, 7.8, 3' (J. J. Gonzalez, Leon, Spain, 25x100 binoculars; moonlight alt. 10 deg);
Mar. 30.86, 8.0, 4' (J. J. Gonzalez, Leon, Spain, 25x100 binoculars; moonlight alt. 11 deg);
     29.85, 8.1, 4' (J. J. Gonzalez, Asturias, Spain, 25x100 binoculars; alt. 12 deg);
     26.86, 8.2, 6' (J. J. Gonzalez, Leon, Spain, 10x50 binoculars; zodiacal light);
     25.90, 9.0, -- (J. G. de S. Aguiar, Campinas, Brazil, 25x100 binoculars);
     24.90, 9.2, -- (J. G. de S. Aguiar, Campinas, Brazil, 25x100 binoculars);
     21.86, 9.1, 5' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector; zodiacal light);
     20.86, 9.2, 4' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector; zodiacal light);
     20.83, 9.7, 3' (A. Diepvens, Balen, Belgium, 20-cm refractor);
     20.80, 9.3, 4' (M. Meyer, Limburg, Germany, 15-cm refractor);
     19.81, 9.6, 3' (T. Karhula, Virsbo, Sweden, 25x100 binoculars);
     18.83, 9.9, 3'.8 (J. Qvam, Borrevannet, Horten, Norway, 0.10-m refractor + CCD + V filter);
     17.82, 9.4, 3' (A. Diepvens, Balen, Belgium, 20-cm refractor);
     17.77, 9.0, 3'.5 (K. Hornoch, Vohancice, Czech Republic, 0.13-m reflector);
     17.39, 10.5, 4' (C. Wyatt, Walcha, NSW, Australia, 35-cm reflector);
     16.90, 9.7, 3' (J. G. de S. Aguiar, Campinas, Brazil, 25x100 binoculars);
     16.85, 10.2, 4' (S. Shurpakov, Baran', Belarus, 0.25-m reflector);
     15.91, 9.8, 3' (J. G. de S. Aguiar, Campinas, Brazil, 25x100 binoculars);
     15.85, 9.5, 4' (J. J. Gonzalez, Leon, Spain, 25x100 binoculars; zodiacal light);
     15.80, 10.0, 2'.8 (J. Qvam, Borrevannet, Horten, Norway, 0.10-m refractor + CCD + V filter);
 
 
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
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);
Apr. 28.81, 9.0, 3'.5 (M. Lehky, Hradec Kralove, Czech Republic, 25x100 binoculars);
     25.83, 8.8, 2'.3 (M. L. Paradowski, Szabalowa Gora, Poland, 0.20-m reflector);
     25.82, 9.4, 3'.5 (K. Hornoch, Vohancice, Czech Republic, 0.13-m reflector);
     25.81, 8.8, 4'.5 (M. Lehky, Hradec Kralove, Czech Republic, 25x100 binoculars);
     25.11, 8.3, 3' (A. Diepvens, Balen, Belgium, 0.20-m refractor);
     22.83, 8.8, 3' (M. L. Paradowski, Dabrowica, Poland, 25x100 binoculars);
     20.88, 9.2, 4' (J. J. Gonzalez, Leon, Spain, 25x100 binoculars);
     20.84, 8.8, 4'.1 (M. Meyer, Limburg, Germany, 15-cm refractor);
     20.15, 9.3, 4' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
     19.84, 9.0, 3'.9 (M. Meyer, Limburg, Germany, 15-cm refractor);
     15.83, 8.7, 3'.9 (M. Meyer, Frauenstein, Germany, 15-cm refractor);
     14.82, 8.7, 4'.0 (M. Meyer, Frauenstein, Germany, 15-cm refractor);
     13.84, 8.8, 2'.0 (W. Hasubick, Buchloe, Germany, 10-cm refractor);
     13.83, 9.1, 2'.6 (M. Meyer, Frauenstein, Germany, 15-cm refractor);
     12.86, 8.2, 6' (J. J. Gonzalez, Leon, Spain, 25x100 binoculars);
     11.88, 8.4, 5' (B. H. Granslo, Aarnes, Norway, 0.10-m refractor; somewhat hazy sky; comet only 0.4 deg from alpha Cas);
     11.81, 8.8, 4' (U. Pilz, Leipzig, Germany, 8-cm refractor);
     10.93, 10.6, 2'.0 (J. Qvam, Borrevannet, Horten, Norway, 0.10-m refractor + CCD + V filter; moonlight);
     10.77, 10.7, -- (K. Kadota, Ageo, Japan, 0.25-m reflector + CCD);
      9.78, 10.7, -- (K. Kadota, Ageo, Japan, 0.25-m reflector + CCD);
      7.81, 10.0, 1'.41 (S. Shurpakov, Baran', Belarus, 0.19-m reflector + CCD);
      7.79, 8.5, 4' (M. Lehky, Hradec Kralove, Czech Republic, 25x100 binoculars; moonlight);
      7.09, 8.5, 4' (M. Reszelski, Szamotuly-Galowo, Poland, 15x70 binoculars);
      7.06, 8.5, 4' (B. H. Granslo, Fjellhamar, Norway, 0.20-m reflector; moonlight);
      6.91, 9.7, 2' (V. Nevski, Vitebsk, Belarus, 0.30-m reflector);
      6.16, 8.1, 7' (J. J. Gonzalez, Burgos, Spain, 25x100 binoculars);
 
 
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
June 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 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 P/2009 L2 (Yang-Gao)
     Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2009
June 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, 12.9, 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 6P/d'Arrest
     Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2009
Jan. 16.49, 15.3*, 0'.7 (M. Tsumura, Wakayama, Japan, 35-cm reflector + CCD);
2008
Dec. 19.49, 14.8*, 1'.0 (M. Tsumura, Wakayama, Japan, 35-cm reflector + CCD);
      3.47, 13.2*, 1'.2 (M. Tsumura, Wakayama, Japan, 35-cm reflector + CCD);
Nov. 25.52, 12.5*, 1'.8 (K. Yoshimoto, Hirao, Yamaguchi, Japan, 16-cm reflector + V filter + CCD);
     23.39, 10.6, 2'.9 (S. Yoshida, Gunma, Japan, 0.40-m reflector);
     22.45, 10.3, 3'.2 (S. Yoshida, Gunma, Japan, 0.40-m reflector);
     19.49, 10.6, 3'.9 (K. Yoshimoto, Yamaguchi, Japan, 0.25-m reflector);
     16.78, 9.7, 5' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector; alt. 13 deg);
     15.78, 9.3, 5' (J. J. Gonzalez, Leon, Spain, 25x100 binoculars; alt. 13 deg);
      5.98, 9.5, 6' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector; alt. 6 deg);
      3.50, 9.8, 6' (D. A. J. Seargent, Cowra, NSW, Australia, 25x100 binoculars);
      1.43, 9.9, 1'.8 (S. Yoshida, Gunma, Japan, 0.40-m reflector);
 
 
COMET 10P/Tempel
Apr.  1.88, 19.0, 0'.1 (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD);
2009
     19.83, 19.2, 0'.1 (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD);
 
 
COMET 15P/Finlay
     Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2008
Nov.  9.16, 18.0:, 0'.2 (A. Baransky, Lisnyky, Ukraine, 0.70-m reflector + CCD);
 
 
COMET 17P/Holmes
     Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2008
Nov.  1.80, [13.6, ! 0'.9 (S. Yoshida, Gunma, Japan, 0.40-m reflector);
Apr. 25.85, 6.0:, & 60' (M. L. Paradowski, Dabrowa, Poland, 7x50 binoculars);
     23.92, [6.2, ! 60' (J. J. Gonzalez, Leon, Spain, 6x50 monocular);
      3.90, 5.4, 60' (J. J. Gonzalez, Asturias, Spain, 4x30 monocular);
 
 
COMET 19P/Borrelly
Total magnitude and coma diameter estimates:
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);
2008
Nov. 23.82, 12.9, 1'.1 (S. Yoshida, Gunma, Japan, 0.40-m reflector);
     22.79, 12.5, 1'.6 (S. Yoshida, Gunma, Japan, 0.40-m reflector);
      8.10, 12.8, 1'.46 (S. Shurpakov, Baran', Belarus, 0.19-m reflector + CCD);
      6.20, 10.9, 2'.5 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
      4.11, 13.0, 1'.7 (S. Shurpakov, Baran', Belarus, 0.19-m reflector + CCD);
      1.78, 12.0, 2'.1 (S. Yoshida, Gunma, Japan, 0.40-m reflector);
 
 
COMET 22P/Kopff
     Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2009
June 21.38, 10.0, -- (A. Amorim, Florianopolis, Brazil, 0.18-m reflector);
     21.27, 9.5, 7' (M. Goiato, Aracatuba, Brazil, 22-cm 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);
Apr. 27.32, 9.5:, 8' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars);
     25.67, 9.6, 10' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector);
     25.29, 9.5, 4' (M. Goiato, Aracatuba, Brazil, 22-cm reflector; clouds);
     23.75, 10.5, 4' (C. Wyatt, Walcha, NSW, Australia, 20-cm reflector);
     22.15, 9.1, 6' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
     20.25, 10.0, 4' (M. Goiato, Aracatuba, Brazil, 22-cm reflector);
     19.22, 9.9, 0'.5 (A. Amorim, Florianopolis, Brazil, 0.18-m reflector; moonlight);
     18.36, 9.7, -- (A. Amorim, Florianopolis, Brazil, 0.18-m reflector; moonlight);
      6.17, 9.7, 7' (J. J. Gonzalez, Burgos, Spain, 0.15-m reflector);
      4.29, 10.0, 4' (M. Goiato, Aracatuba, Brazil, 22-cm reflector);
Mar. 22.18, 10.8, 3'.5 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
      7.31, 12.7, 0'.5 (M. Goiato, Aracatuba, Brazil, 22-cm reflector);
      3.22, 12.3, 1'.3 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
Feb. 22.31, 12.9:, 0'.2 (M. Goiato, Aracatuba, Brazil, 22-cm reflector);
 
 
COMET 29P/SCHWASSMANN-WACHMANN
     Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2009
Apr. 28.85, 12.3, 1'.5 (M. Lehky, Hradec Kralove, Czech Republic, 0.42-m reflector);
     25.92, [12.7, ! 1' (M. L. Paradowski, Szabalowa Gora, Poland, 0.20-m reflector; alt. 16 deg);
     25.86, 12.3, 1'.5 (M. Lehky, Hradec Kralove, Czech Republic, 0.42-m reflector);
     20.96, 11.8, 2' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
     19.86, 12.3, 1'.3 (M. Lehky, Hradec Kralove, Czech Republic, 0.42-m reflector);
     15.85, 12.7, 1'.5 (M. Lehky, Hradec Kralove, Czech Republic, 0.42-m reflector);
     14.85, 12.7, 1'.5 (M. Lehky, Hradec Kralove, Czech Republic, 0.42-m reflector);
     13.85, 12.7, 1'.5 (M. Lehky, Hradec Kralove, Czech Republic, 0.42-m reflector);
Mar. 26.95, 11.5, 2' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
     21.93, 11.1, 3' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
     21.81, 11.6, 2' (M. Lehky, Hradec Kralove, Czech Republic, 0.42-reflector);
     21.03, 11.3, 3' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
     15.91, 11.3, 2'.5 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
     14.81, 11.5, 2' (V. M. Ivanov, Saratov, Russia, 27.5-cm reflector);
     13.85, 11.2, 2'.5 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
      4.96, 12.1, 1'.6 (S. Shurpakov, Baran', Belarus, 0.08-m refractor + CCD);
      1.00, 11.2, 2' (M. Goiato, Aracatuba, Brazil, 22-cm reflector);
Feb. 28.74, 12.1, 1'.3 (T. Scarmato, Calabria, Italy, 25-cm reflector + CCD);
     25.91, 11.0, 3'.0 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
     22.94, 10.8, 3'.0 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
     21.76, 12.7, 0'.87 (T. Scarmato, Calabria, Italy, 25-cm reflector + CCD);
     21.00, 11.0, 2'.5 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
     18.96, 11.8, 2'.9 (S. Shurpakov, Baran', Belarus, 0.08-m refractor + CCD);
     18.06, 11.3, 3' (M. Goiato, Aracatuba, Brazil, 0.22-m reflector);
     13.85, 10.8, 2'.5 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector; new outburst);
 
 
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 44P/Reinmuth
     Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2008
Nov. 11.00, 16.9, 0'.3 (A. Baransky, Lisnyky, Ukraine, 0.70-m reflector + CCD);
      7.99, 16.7, 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):
2008
Nov.  3.73, 15.2, 0'.5 (S. Shurpakov, Baran', Belarus, 0.19-m reflector + CCD);
Aug.  6.02, 14.6, 0'.2 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
 
 
COMET 51P/Harrington
     Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2008
Dec.  3.55, 15.4*, 0'.5 (M. Tsumura, Wakayama, Japan, 35-cm reflector + CCD);
Nov. 25.63, 15.2, 0'.8 (K. Yoshimoto, Hirao, Yamaguchi, Japan, 16-cm reflector + CCD);
     18.84, 15.1, 0'.77 (S. Shurpakov, Baran', Belarus, 0.19-m reflector + CCD);
     10.98, 15.8, 0'.4 (A. Baransky, Lisnyky, Ukraine, 0.70-m reflector + CCD);
      7.95, 15.3, 0'.5 (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD);
      7.84, 14.9, 0'.57 (S. Shurpakov, Baran', Belarus, 0.19-m reflector + CCD);
      3.90, 14.6, 0'.41 (S. Shurpakov, Baran', Belarus, 0.19-m reflector + CCD);
 
 
COMET 59P/Kearns-Kwee
     Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2009
Jan. 17.50, 16.7*, 0'.3 (M. Tsumura, Wakayama, Japan, 35-cm reflector + CCD);
      8.74, 16.9, 0'.2 (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD);
      1.84, 16.4, 0'.48 (S. Shurpakov, Baran', Belarus, 80-mm refractor + CCD);
2008
 
 
COMET 61P/Shajn-Schaldach
     Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2009
Jan. 20.72, 16.7, 0'.7 (A. Baransky, Lisnyky, Ukraine, 0.70-m reflector + CCD);
      8.72, 16.8, 0'.3 (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD);
      1.89, 16.2, 0'.4 (S. Shurpakov, Baran', Belarus, 80-mm refractor + CCD);
 
 
COMET 65P/GUNN
     Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2009
June 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  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);
Apr. 30.51, 14.3, < 1' (C. Wyatt, Walcha, NSW, Australia, 35-cm reflector);
     25.90, 13.8, 0'.6 (M. Lehky, Hradec Kralove, Czech Republic, 0.42-m reflector);
     24.90, 14.0, 0'.5 (M. Lehky, Hradec Kralove, Czech Republic, 0.42-m reflector);
     22.02, 13.3, 0'.4 (M. Goiato, Aracatuba, Brazil, 22-cm reflector);
     20.98, 13.1, 1'.0 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
     19.87, 14.2, 1' (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD);
     12.89, 13.7, 0'.8 (W. Hasubick, Buchloe, Germany, 44-cm reflector);
      2.12, 13.2, 0'.5 (M. Goiato, Aracatuba, Brazil, 22-cm reflector);
      1.90, 14.4, 0'.8 (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD);
      1.12, 13.3, 0'.3 (M. Goiato, Aracatuba, Brazil, 22-cm reflector);
Mar. 26.99, 13.2, 0'.8 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
     22.12, 13.2, 0'.8 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
      3.19, 13.4, 0'.8 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
Feb.  2.08, 14.9, 0'.5 (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD);
 
 
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);
Apr. 20.89, 9.6, 6' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector; zodiacal light);
     19.84, 11.3, 4' (U. Pilz, Leipzig, Germany, 12-cm refractor);
      5.94, 9.7, 3' (M. Goiato, Aracatuba, Brazil, 22-cm reflector; moonlight);
      2.94, 9.7, 4' (M. Goiato, Aracatuba, Brazil, 22-cm reflector; moonlight; alt. 15 deg);
Mar. 26.88, 9.3, 7' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector; zodiacal light);
     21.89, 9.5, 8' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector; zodiacal light);
     20.87, 9.7, 7' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector; zodiacal light);
     20.82, 10.8, 2' (A. Diepvens, Balen, Belgium, 20-cm refractor);
     17.80, 10.5, 3' (U. Pilz, Leipzig, Germany, 32-cm reflector);
     15.87, 9.7, 6' (J. J. Gonzalez, Leon, Spain, 25x100 binoculars; zodiacal light);
     13.84, 9.8, 7' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector; zodiacal light);
Feb. 25.83, 10.2, 4'.5 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector; zodiacal light);
     22.83, 10.4, 3'.5 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector; zodiacal light);
     17.43, 11.5, 1'.8 (K. Yoshimoto, Yamaguchi, Japan, 0.25-m reflector);
     14.96, 11.4:, 1' (M. Goiato, Aracatuba, Brazil, 0.22-m reflector);
     13.82, 10.8, 2'.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 85P/Boethin
     Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2008
Sept. 8.00, [14.0, -- (A. Amorim, Florianopolis, Brazil, 0.25-m reflector; moonlight);
      3.12, [14.6, -- (M. Goiato, Aracatuba, Brazil, 22-cm reflector; searched 10' radius from prediction on MPC 54171);
Aug. 26.88, [17.6, ! 0'.2 (A. Baransky, Lisnyky, Ukraine, 0.70-m reflector + CCD);
 
 
COMET 88P/Howell
     Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2009
June 17.94, 13.2, 0'.7 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
Apr. 21.89, 15.8, 0'.4 (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD);
 
 
COMET 116P/Wild
     Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2009
June 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);
     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);
Apr. 30.49, 13.7, 1' (C. Wyatt, Walcha, NSW, Australia, 35-cm reflector);
     29.02, 11.4, 2'.5 (M. Goiato, Aracatuba, Brazil, 22-cm reflector);
     25.94, 12.2, 0'.5 (M. L. Paradowski, Szabalowa Gora, Poland, 0.20-m reflector);
     25.82, 14.4, 1' (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD);
     25.46, 11.8, < 2' (C. Wyatt, Walcha, NSW, Australia, 25-cm reflector);
     21.98, 11.7, 2' (M. Goiato, Aracatuba, Brazil, 22-cm reflector);
     20.95, 11.2, 4' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
     19.92, 11.4, 2' (U. Pilz, Leipzig, Germany, 32-cm reflector);
     12.91, 12.7, 0'.7 (W. Hasubick, Buchloe, Germany, 44-cm reflector);
     10.83, 13.9, 1' (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD);
Mar. 29.81, 13.0, 0'.5 (V. M. Ivanov, Saratov, Russia, 25.4-cm reflector);
     26.98, 11.5, 3' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
     21.94, 11.5, 2'.5 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
     21.08, 11.6, 2'.5 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
     15.92, 11.7, 2'.0 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
     13.86, 11.6, 2'.5 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
      2.14, 11.9, 2' (M. Goiato, Aracatuba, Brazil, 22-cm reflector);
Feb. 25.92, 11.7, 2'.5 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
     22.84, 11.7, 2'.5 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
     20.10, 12.1, 2' (M. Goiato, Aracatuba, Brazil, 22-cm reflector);
     19.01, 13.1, 0'.96 (S. Shurpakov, Baran', Belarus, 0.08-m refractor + CCD);
     18.12, 12.0, 2' (M. Goiato, Aracatuba, Brazil, 0.22-m reflector);
      1.98, 14.3, 0'.7 (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD);
 
 
COMET 117P/Helin-Roman-Alu
     Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2008
Nov.  7.98, 17.6, 0'.2 (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD);
 
 
COMET 136P/Mueller
     Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2008
Nov. 11.14, 18.0, 0'.3 (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);
Mar. 29.70, 10.5, 4' (V. M. Ivanov, Saratov, Russia, 25.4-cm reflector);
     26.93, 9.3, 6' (J. J. Gonzalez, Leon, Spain, 25x100 binoculars);
     25.95, 10.4, 4' (M. Goiato, Aracatuba, Brazil, 22-cm reflector);
     21.90, 9.5, 6' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
     21.86, 10.1, 5' (A. Diepvens, Balen, Belgium, 20-cm refractor);
     21.75, 10.2, 4' (M. Lehky, Hradec Kralove, Czech Republic, 0.42-m reflector);
     21.01, 9.5, 6' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
     20.84, 9.9, 5' (A. Diepvens, Balen, Belgium, 20-cm refractor);
     19.85, 9.5:, 8' (T. Karhula, Virsbo, Sweden, 25x100 binoculars; several stars in coma);
     19.81, 9.6, 4'.5 (M. Meyer, Limburg, Germany, 15-cm refractor);
     17.95, 9.5, 5' (K. Hornoch, Vohancice, Czech Republic, 0.13-m reflector);
     17.82, 8.0, 30' (U. Pilz, Leipzig, Germany, 10x50 binoculars);
     17.81, 11.5, 3' (S. Shurpakov, Baran', Belarus, 0.08-m refractor + CCD)
     17.81, 10.1, 5' (A. Diepvens, Balen, Belgium, 20-cm refractor);
     16.95, 9.5, 2'.7 (S. Shurpakov, Baran', Belarus, 0.25-m reflector);
     15.89, 9.5, 6' (J. J. Gonzalez, Asturias, Spain, 25x100 binoculars);
     14.79, 10.0, 3' (V. M. Ivanov, Saratov, Russia, 27.5-cm reflector);
     12.85, 9.1, 5' (J. J. Gonzalez, Asturias, Spain, 25x100 binoculars);
      6.91, 9.4, 5' (J. G. de S. Aguiar, Campinas, Brazil, 25x100 binoculars);
      5.90, 9.3, 5' (J. G. de S. Aguiar, Campinas, Brazil, 25x100 binoculars);
      4.90, 9.3, 5' (J. G. de S. Aguiar, Campinas, Brazil, 25x100 binoculars);
      4.90, 11.8, 1'.68 (S. Shurpakov, Baran', Belarus, 0.08-m refractor + CCD);
      3.12, 11.0, 4' (S. Aguirre, Hermosillo, Mexico, 0.20-m reflector);
      2.91, 9.2, 6' (J. G. de S. Aguiar, Campinas, Brazil, 25x100 binoculars);
      1.96, 9.5, 6' (M. Goiato, Aracatuba, Brazil, 22-cm reflector);
      1.91, 9.2, 7' (J. G. de S. Aguiar, Campinas, Brazil, 25x100 binoculars);
Feb. 28.98, 9.5, 6' (M. Goiato, Aracatuba, Brazil, 22-cm reflector);
     28.92, 9.1, 7' (J. G. de S. Aguiar, Campinas, Brazil, 25x100 binoculars);
     28.77, 9.0:, 8' (T. Karhula, Virsbo, Sweden, 25x100 binoculars; stars inside coma);
     28.75, 10.4, 2'.3 (T. Scarmato, Calabria, Italy, 25-cm reflector + CCD);
     27.95, 9.0:, 10' (T. Karhula, Virsbo, Sweden, 25x100 binoculars; several stars in coma);
     27.92, 9.1, 7' (J. G. de S. Aguiar, Campinas, Brazil, 25x100 binoculars);
     26.91, 9.1, 8' (J. G. de S. Aguiar, Campinas, Brazil, 25x100 binoculars);
     26.04, 9.1, 3' (W. Souza, Sao Paulo, Brazil, 20x80 binoculars);
     25.92, 9.0, 8' (J. G. de S. Aguiar, Campinas, Brazil, 25x100 binoculars);
     25.90, 8.6, 10' (J. J. Gonzalez, Leon, Spain, 25x100 binoculars);
     23.05, 9.2, -- (W. Souza, Sao Paulo, Brazil, 20x80 binoculars);
     22.92, 8.6, 7' (J. J. Gonzalez, Leon, Spain, 25x100 binoculars);
     22.01, 9.1, 7' (J. G. de S. Aguiar, Campinas, Brazil, 25x100 binoculars);
     21.97, 9.3, 6' (M. Goiato, Aracatuba, Brazil, 0.22-m reflector);
     21.78, 11.3, 1'.7 (T. Scarmato, Calabria, Italy, 25-cm reflector + CCD);
     21.00, 9.0, 7' (J. G. de S. Aguiar, Campinas, Brazil, 25x100 binoculars);
     20.97, 8.5, 9' (J. J. Gonzalez, Leon, Spain, 25x100 binoculars);
     20.01, 9.0, 7' (J. G. de S. Aguiar, Campinas, Brazil, 25x100 binoculars);
     19.97, 9.2, 7' (M. Goiato, Aracatuba, Brazil, 22-cm reflector);
     19.95, 8.9, 5' (W. Souza, Sao Paulo, Brazil, 20x80 binoculars);
     19.02, 9.1, 8' (M. Goiato, Aracatuba, Brazil, 20x100 binoculars);
     19.01, 8.9, 8' (J. G. de S. Aguiar, Campinas, Brazil, 25x100 binoculars);
     19.00, 8.9:, -- (W. Souza, Sao Paulo, Brazil, 20x80 binoculars);
     18.85, 11.3, 2.8' (S. Shurpakov, Baran', Belarus, 0.08-m refractor + CCD);
     18.84, 8.7, 6' (M. Meyer, Limburg, Germany, 15-cm refractor);
     18.82, 8.6, 5' (A. Diepvens, Balen, Belgium, 0.20-m refractor);
     18.04, 9.1, 8' (M. Goiato, Aracatuba, Brazil, 0.22-m reflector);
     18.01, 8.7, 8' (J. G. de S. Aguiar, Campinas, Brazil, 25x100 binoculars);
     17.98, 8.6, 5' (W. Souza, Sao Paulo, Brazil, 20x80 binoculars);
     17.74, 9.1, 12' (K. Hornoch, Vohancice, Czech Republic, 10x80 binoculars);
     17.50, 9.3, 5'.6 (K. Yoshimoto, Yamaguchi, Japan, 0.25-m reflector);
     17.00, 8.7, 10' (J. G. de S. Aguiar, Campinas, Brazil, 25x100 binoculars);
     15.97, 8.7, 5' (A. Amorim, Florianopolis, Brazil, 20x80 binoculars);
     14.98, 9.2, 6' (M. Goiato, Aracatuba, Brazil, 0.22-m reflector);
     13.93, 8.6, 10' (J. J. Gonzalez, Leon, Spain, 25x100 binoculars);
      6.97, 8.6, 10' (J. G. de S. Aguiar, Campinas, Brazil, 25x100 binoculars);
      4.00, 8.6, 10' (J. G. de S. Aguiar, Campinas, Brazil, 25x100 binoculars);
      2.00, 8.5, 10' (W. Souza, Sao Paulo, Brazil, 20x80 binoculars);
      1.97, 8.5, 8' (J. G. de S. Aguiar, Campinas, Brazil, 25x100 binoculars);
      1.04, 8.5, 10' (W. Souza, Sao Paulo, Brazil, 20x80 binoculars);
 
 
COMET 188P/LINEAR-Mueller
     Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2008
Nov. 12.01, 18.8, 0'.1 (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD);
Jan.  4.84, 16.3, +0'.2 (A. Baransky, Lisnyky, Ukraine, 0.70-m reflector + CCD);
      4.75, 16.8, 0'.3 (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD);
 
 
COMET 200P/Larsen
     Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2008
Nov. 18.74, 18.4, 0'.2 (V. Nevski, Vitebsk, Belarus, 0.30-m reflector + CCD);
      3.79, 16.8, 0'.31 (S. Shurpakov, Baran', Belarus, 0.19-m reflector + CCD);
 
 
COMET 202P/Scotti
     Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2008
Nov. 11.03, 17.7, 0'.2 (A. Baransky, Lisnyky, Ukraine, 0.70-m reflector + CCD);
 
 
COMET 204P/LINEAR-NEAT
     Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2009
Jan.  8.85, 17.5, 0'.2 (A. Baransky, Lisnyky, Ukraine, 0.70-m reflector + CCD);
2008
Dec.  3.67, 17.5*, 0'.2 (M. Tsumura, Wakayama, Japan, 35-cm reflector + CCD);
 
 
COMET 205P/2008 R6 (Giacobini)
     Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2008
Dec. 19.44, 14.9*, 0'.5 (M. Tsumura, Wakayama, Japan, 35-cm reflector + CCD);
      3.44, 13.9*, 0'.5 (M. Tsumura, Wakayama, Japan, 35-cm reflector + CCD);
 
 
COMET 206P/2008 T3 (Barnard-Boattini)
     Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2008
Oct. 22.77, 16.4, 0'.3 (A. Baransky, Lisnyky, Ukraine, 0.70-m reflector + CCD);
     20.77, 17.0, 0'.27 (S. Shurpakov, Baran', Belarus, 0.19-m reflector + CCD);
      9.78, 17.2, 0'.3 (A. Baransky, Lisnyky, Ukraine, 0.70-m reflector + CCD);
 
 
COMET 209P/2008 X2 (LINEAR)
     Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2009
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
May  27.12, 14.6, 0'.6 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector);
217P/Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
     2009 F3 (LINEAR)


2009
Jan.  5.86, 17.4, 0'.3 (A. Baransky, Lisnyky, Ukraine, 0.70-m reflector + CCD);
Astronomical Headlines
ICQ