MPEC 2009-U135: COMET C/2009 U3 (HILL)
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M.P.E.C. 2009-U135 Issued 2009 Oct. 30, 17:17 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets and routine data on comets. They are published
on behalf of Commission 20 of the International Astronomical Union by the
Minor Planet Center, Smithsonian Astrophysical Observatory,
Cambridge, MA 02138, U.S.A.
Prepared using the Tamkin Foundation Computer Network
MPC@CFA.HARVARD.EDU
URL http://www.cfa.harvard.edu/iau/mpc.html ISSN 1523-6714
COMET C/2009 U3 (HILL)
Observations:
CK09U030 C2009 10 24.39774 03 46 24.63 +15 37 02.5 17.6 T EU135703
CK09U030 C2009 10 24.40795 03 46 23.88 +15 37 12.9 18.1 T EU135703
CK09U030 C2009 10 24.41803 03 46 23.01 +15 37 19.1 17.6 T EU135703
CK09U030 C2009 10 24.42819 03 46 22.26 +15 37 30.5 17.9 T EU135703
CK09U030 C2009 10 25.07932 03 45 31.31 +15 47 47.5 18.9 N EU135160
CK09U030 C2009 10 25.11184 03 45 28.69 +15 48 17.3 18.5 N EU135J47
CK09U030 C2009 10 25.12948 03 45 27.28 +15 48 35.0 19.1 N EU135J47
CK09U030 C2009 10 25.13556 03 45 26.87 +15 48 40.2 18.9 N EU135J47
CK09U030 C2009 10 25.34225 03 45 10.24 +15 51 56.6 18.5 N EU135850
CK09U030 C2009 10 25.36469 03 45 08.44 +15 52 17.6 19.1 N EU135850
CK09U030 C2009 10 25.38709 03 45 06.58 +15 52 39.1 18.5 N EU135850
CK09U030 C2009 10 25.55086 03 44 53.47 +15 55 22.5 20.2 N EU135E85
CK09U030 C2009 10 25.55446 03 44 53.24 +15 55 26.3 19.0 N EU135E85
CK09U030 C2009 10 25.55806 03 44 53.01 +15 55 29.8 19.9 N EU135E85
CK09U030 C2009 10 25.56166 03 44 52.70 +15 55 33.7 20.6 N EU135E85
CK09U030 C2009 10 26.02134 03 44 15.17 +16 02 48.0 18.5 N EU135130
CK09U030 C2009 10 26.02472 03 44 14.89 +16 02 50.8 18.8 N EU135130
CK09U030 C2009 10 26.02686 03 44 14.71 +16 02 52.3 18.5 N EU135130
CK09U030 C2009 10 26.02937 03 44 14.44 +16 02 55.2 18.2 N EU135130
CK09U030 C2009 10 26.26238 03 43 55.45 +16 06 42.5 17.3 T EU135703
CK09U030 C2009 10 26.27148 03 43 54.55 +16 06 50.0 17.4 T EU135703
CK09U030 C2009 10 26.28066 03 43 53.76 +16 06 58.7 17.6 T EU135703
CK09U030 C2009 10 26.28977 03 43 53.07 +16 07 07.7 17.9 T EU135703
CK09U030 2009 10 26.69028 03 43 19.23 +16 13 39.0 18.5 N EU135372
CK09U030 C2009 10 27.27504 03 42 29.54 +16 23 12.6 17.9 T EU135H06
CK09U030 C2009 10 27.28247 03 42 28.84 +16 23 19.8 EU135H06
CK09U030 C2009 10 27.37063 03 42 21.10 +16 24 47.7 EU135691
CK09U030 C2009 10 27.38787 03 42 19.56 +16 25 04.7 EU135691
CK09U030 C2009 10 27.40509 03 42 18.01 +16 25 21.7 EU135691
CK09U030 C2009 10 27.66175 03 41 55.79 +16 29 36.0 EU135900
CK09U030 C2009 10 27.67235 03 41 54.90 +16 29 46.7 18.2 T EU135900
CK09U030 C2009 10 27.73917 03 41 48.91 +16 30 52.1 17.8 T EU135349
CK09U030 C2009 10 27.74366 03 41 48.50 +16 30 56.7 EU135349
CK09U030 C2009 10 27.74815 03 41 48.10 +16 31 01.2 EU135349
CK09U030 C2009 10 28.86748 03 40 08.25 +16 49 46.1 18.5 N EU135A79
CK09U030 C2009 10 28.87146 03 40 07.84 +16 49 50.9 18.3 N EU135A79
CK09U030 C2009 10 28.87421 03 40 07.65 +16 49 53.4 18.2 N EU135A79
CK09U030 C2009 10 28.87778 03 40 07.30 +16 49 55.8 18.3 N EU135A79
CK09U030 C2009 10 29.13624 03 39 43.20 +16 54 18.5 18.4 T EU135215
CK09U030 C2009 10 29.13730 03 39 43.10 +16 54 20.1 18.8 T EU135215
CK09U030 C2009 10 29.13836 03 39 43.00 +16 54 21.8 18.9 T EU135215
Observer details:
130 Lumezzane. Observers M. Casali, W. Marinello, M. Micheli, G. Pizzetti,
A. Soffiantini. Measurer W. Marinello. 0.40-m f/4.5 reflector + CCD.
160 Castelmartini. Observers P. Camilleri, E. Guido, M. Jaeger, E. Prosperi,
G. Sostero, W. Vollmann. Measurer E. Prosperi. 0.35-m f/10
Schmidt-Cassegrain + CCD.
215 Buchloe. Observer W. Hasubick. 0.44-m f/4.6 reflector + CCD.
349 Ageo. Observer K. Kadota. 0.25-m f/5.0 reflector + CCD.
372 Geisei. Observer T. Seki. 0.60-m f/3.5 reflector.
691 Steward Observatory, Kitt Peak. Observer T. H. Bressi. 0.9-m f/3
reflector + CCD.
703 Catalina Sky Survey. Observer R. A. Kowalski. Measurers E. C. Beshore,
A. Boattini, A. R. Gibbs, A. D. Grauer, R. E. Hill, R. A. Kowalski,
S. M. Larson. 0.68-m Schmidt + CCD.
850 Cordell-Lorenz Observatory, Sewanee. Observer D. T. Durig. 0.30-m f/2.8
Schmidt-Cassegrain + CCD.
900 Moriyama. Observer Y. Ikari. 0.26-m f/7.0 reflector + CCD.
A79 Zvezdno Obshtestvo Observatory, Plana. Observer F. Fratev. 0.35-m f/3.4
reflector + CCD.
E85 Farm Cove. Observer J. McCormick. 0.35-m f/10 Schmidt-Cassegrain + CCD.
H06 RAS Observatory, Mayhill. Observer H. Sato. 0.25-m f/3.4 reflector + CCD.
J47 Observatorio Nazaret. Observer G. Muler. Measurers J. M. Ruiz, G. Muler.
0.30-m Schmidt-Cassegrain + CCD.
Orbital elements:
C/2009 U3 (Hill)
T 2010 Mar. 19.982 TT MPC
q 1.41439 (2000.0) P Q
Peri. 77.621 -0.322015 -0.737878
Node 49.331 +0.209315 -0.666520
e 1.0 Incl. 51.447 +0.923306 -0.106243
From 101 observations 2009 Oct. 21-29.
Ephemeris:
C/2009 U3 (Hill)
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2009 10 26 03 44.28 +16 02.5 1.491 2.428 154.8 10.0 17.7
2009 11 05 03 27.94 +18 57.3 1.348 2.327 168.2 5.0 17.3
2009 11 15 03 06.44 +22 15.6 1.241 2.228 174.9 2.3 16.9
2009 11 25 02 40.85 +25 44.2 1.174 2.130 160.6 8.9 16.6
2009 12 05 02 13.56 +29 06.5 1.146 2.035 145.2 16.0 16.4
2009 12 15 01 47.56 +32 10.8 1.152 1.942 130.6 22.6 16.2
2009 12 25 01 25.48 +34 56.7 1.183 1.853 117.3 28.1 16.0
Further observations of comet P/2009 U4 are desirable.
Brian G. Marsden (C) Copyright 2009 MPC M.P.E.C. 2009-U135
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