[IAUC] IAUC 8879: P/2007 T3 [25139-2008/05-R1]
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Sab Oct 13 17:42:40 ART 2007
Circular No. 8879
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Mailstop 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
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COMET P/2007 T3 (SHOEMAKER-LEVY)
R. H. McNaught reports his recovery of comet P/1990 V1 (=
1990o = 1990 XV; cf. IAUC 5135) on CCD images taken with the 0.5-m
Uppsala Schmidt telescope at Siding Spring; the comet shows a 10"
coma and no tail on Oct. 12, and McNaught's astrometric measures
are given below:
2007 UT R.A. (2000) Decl. Mag.
Oct. 12.44402 18 51 51.48 -50 45 12.6 18.2
12.45295 18 51 53.13 -50 45 08.6 18.2
12.46192 18 51 54.50 -50 45 02.2 18.3
12.47080 18 51 56.16 -50 44 57.5 18.5
12.51989 18 52 04.55 -50 44 28.4 18.0
13.41858 18 54 40.98 -50 35 47.2 18.1
The indicated correction to the orbital elements on MPC 51824 is
Delta(T) = +4.5 days. Orbital elements by B. G. Marsden from 36
observations spanning 1990-2007 (mean residual 0".8; ephemeris H_10
= 15.0):
Epoch = 1990 Sept.26.0 TT
T = 1990 Sept.18.5921 TT Peri. = 310.6225
e = 0.771949 Node = 52.0443 2000.0
q = 1.524077 AU Incl. = 24.3335
a = 6.683058 AU n = 0.0570481 P = 17.28 years
Epoch = 2007 Dec. 6.0 TT
T = 2007 Dec. 17.3371 TT Peri. = 312.8443
e = 0.773589 Node = 51.6501 2000.0
q = 1.460069 AU Incl. = 24.5612
a = 6.448748 AU n = 0.0601854 P = 16.38 years
2007 TT R. A. (2000) Decl. Delta r Elong. Phase Mag.
Oct. 7 18 36.70 -51 33.4 1.487 1.703 84.0 35.7 18.2
17 19 05.32 -49 58.8 1.495 1.645 79.9 36.6 18.0
27 19 36.79 -47 54.2 1.502 1.593 76.3 37.3 17.9
Nov. 6 20 09.99 -45 13.4 1.509 1.548 73.2 37.8 17.8
16 20 43.88 -41 52.6 1.518 1.512 70.6 38.1 17.7
26 21 17.54 -37 51.4 1.531 1.484 68.3 38.2 17.6
Dec. 6 21 50.30 -33 13.1 1.551 1.467 66.4 38.0 17.6
16 22 21.81 -28 04.2 1.581 1.460 64.6 37.5 17.6
26 22 51.92 -22 34.1 1.623 1.464 62.8 36.7 17.7
(C) Copyright 2007 CBAT
2007 October 13 (8879) Daniel W. E. Green
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