[IAUC] CBET 3051: 20120318 : COMET C/2012 F3 (PANSTARRS)
quai en eps.harvard.edu
quai en eps.harvard.edu
Sab Mar 17 20:48:34 ART 2012
Electronic Telegram No. 3051
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 C/2012 F3 (PANSTARRS)
Richard Wainscoat and Marco Micheli report the discovery of a comet in
four exposures taken with the 1.8-m Pan-STARRS 1 telescope at Haleakala
(discovery observations tabulated below), with the object appearing slightly
extended compared to adjacent stars in images taken with the w filter; they
obtained follow-up observations using the Canada-France-Hawaii Telescope (+ r
filter) on Mar. 17.5 UT (queue observer Peter Forshay) that show the object to
be distinctly extended (the coma having a full-width-at-half-maximum of
approximately 1.7 arcsec, with adjacent stars having FWHM = 1".0), with a
subtle hint of a tail extending to the northwest.
2012 UT R.A. (2000) Decl. Mag.
Mar. 16.32445 10 49 30.99 + 6 59 23.0 21.0
16.33874 10 49 30.71 + 6 59 25.0 21.0
16.35303 10 49 30.46 + 6 59 26.9 21.2
16.36737 10 49 30.18 + 6 59 28.6 21.2
The available astrometry, the following preliminary parabolic orbital elements
by G. V. Williams, and an ephemeris appear on MPEC 2012-F32.
T = 2015 Apr. 4.722 TT Peri. = 103.719
Node = 164.655 2000.0
q = 3.47532 AU Incl. = 11.274
NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
superseded by text appearing later in the printed IAU Circulars.
(C) Copyright 2012 CBAT
2012 March 18 (CBET 3051) Daniel W. E. Green
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