[IAUC] CBET 3246: 20121003 : COMET P/2012 R2 = P/1996 A1 (JEDICKE)
quai en eps.harvard.edu
quai en eps.harvard.edu
Mie Oct 3 09:31:36 ART 2012
Electronic Telegram No. 3246
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
CBAT Director: Daniel W. E. Green; Hoffman Lab 209; Harvard University;
20 Oxford St.; Cambridge, MA 02138; U.S.A.
e-mail: cbatiau en eps.harvard.edu (alternate cbat en iau.org)
URL http://www.cbat.eps.harvard.edu/index.html
Prepared using the Tamkin Foundation Computer Network
COMET P/2012 R2 = P/1996 A1 (JEDICKE)
Artyom Novichonok and Otabek Burhonov report their recovery of comet
P/1996 A1 (cf. IAUCs 6287, 6288, 6292) on four 420-s CCD images obtained on
Sept. 11 with a 1.5-m f/8 Ritchey-Chretien reflector at the Majdanak
observatory in Uzbekistan; the comet showed a small coma of diameter 5".
G. V. Williams subsequently identified Mount Lemmon Survey observations
obtained on Sept. 25 by T. H. Bressi.
2012 UT R.A. (2000) Decl. Mag. Observer
Sept.11.86458 1 47 52.32 +16 52 09.1 Burhonov
11.86948 1 47 52.24 +16 52 08.7 20.9 "
11.87436 1 47 52.18 +16 52 08.4 "
11.88010 1 47 52.09 +16 52 08.0 "
25.42333 1 43 38.68 +16 31 35.3 20.7 Bressi
25.44102 1 43 38.30 +16 31 32.9 21.3 "
25.45871 1 43 37.94 +16 31 30.9 21.3 "
The indicated correction to the prediction by G. V. Williams on MPC 75374 is
Delta(T) = -0.74 day; the indicated correction to the prediction by S. Nakano
in the 2011/2012 Comet Handbook (p. H13) is -0.70 day. The following linked
orbital elements by Williams are from 326 observations spanning 1993 Oct. 12
to 2012 Sept. 25 (mean residual 0".6; cf. MPEC 2012-T07):
Epoch = 2014 Oct. 30.0 TT
T = 2014 Nov. 14.61087 TT Peri. = 223.36989
e = 0.4431333 Node = 248.71637 2000.0
q = 4.0793199 AU Incl. = 6.60224
a = 7.3254870 AU n = 0.04971064 P = 19.83 years
NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
superseded by text appearing later in the printed IAU Circulars.
(C) Copyright 2012 CBAT
2012 October 3 (CBET 3246) Daniel W. E. Green
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