[IAUC] CBET 3144: 20120616 : COMET P/2012 L4 (LARSEN)
quai en eps.harvard.edu
quai en eps.harvard.edu
Sab Jun 16 15:25:04 ART 2012
Electronic Telegram No. 3144
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 L4 (LARSEN)
Krisztian Sarneczky, Konkoly Observatory, reports his recovery of comet
P/2004 H3 (cf. IAUC 8332) on unfiltered CCD images taken with the 0.60-m
Schmidt telescope at Piszkesteto Station of Konkoly Observatory (astrometry
tabulated below). The object shows a 4" coma (nearby stars have FWHM of 2".7)
and a fan-shaped tail 8"-10" long in p.a. about 250 deg on a co-added image
taken on June 15.92 UT. In co-added confirming images taken on June 16.91,
a 4" coma is visible.
2012 UT R.A. (2000) Decl. Mag. Observer
June 15.92057 17 21 58.23 + 3 04 14.0 19.7 Sarneczky
15.92650 17 21 57.94 + 3 04 16.4 20.1 "
15.93243 17 21 57.62 + 3 04 18.2 19.3 "
16.01293 17 21 54.03 + 3 04 44.8 19.2 "
16.88944 17 21 15.79 + 3 09 37.1 "
16.90938 17 21 14.88 + 3 09 42.8 19.5 "
16.91530 17 21 14.60 + 3 09 44.9 19.4 "
The indicated correction to the orbit by S. Nakano in the International
Comet Quarterly's 2011/2012 Comet Handbook is -1.36 day. The following
linked orbital elements by G. V. Williams, residuals, and an ephemeris
appear on MPEC 2012-M04.
Epoch = 2011 Nov. 15.0 TT
T = 2011 Nov. 21.96869 TT Peri. = 346.55682
e = 0.3723700 Node = 220.94654 2000.0
q = 2.4501325 AU Incl. = 25.12003
a = 3.9037847 AU n = 0.12778365 P = 7.71 years
NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
superseded by text appearing later in the printed IAU Circulars.
(C) Copyright 2012 CBAT
2012 June 16 (CBET 3144) Daniel W. E. Green
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