Circular No. 8973 Central Bureau for Astronomical Telegrams INTERNATIONAL ASTRONOMICAL UNION Mailstop 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A. IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions) CBAT@CFA.HARVARD.EDU (science) URL http://www.cfa.harvard.edu/iau/cbat.html ISSN 0081-0304 Phone 617-495-7440/7244/7444 (for emergency use only) COMET C/2008 R3 (LINEAR) An apparently asteroidal object discovered by the LINEAR survey (and posted on the Minor Planet Center's 'NEOCP' webpage) has been found to show cometary appearance by other astrometric CCD observers. E. Pettarin (Farra d'Isonzo, Italy, 0.40-m f/4.5 reflector, Sept. 7.9 UT) writes that, in a star-rich field, the comet shows a 20" tail in p.a. 130 deg. R. Holmes (Charleston, IL, U.S.A., 0.81-m f/4 astrograph, Sept. 8.1) notes a diffuse, elongated shape with coma diameter 13".3. G. Hug (Scranton, KS, U.S.A., 0.56-m reflector, Sept. 8.14-8.15) finds a short, diffuse extension in p.a. about 130 deg. J. Young (Table Mountain 0.61-m f/16 Cassegrain reflector, Sept. 8.3) reports an 8" round, bright coma of mag 17.5 and a poorly defined broad tail of length 16" in p.a. 125-145 deg. P. Camilleri, G. Sostero, and E. Guido (remotely using a 0.30-m f/5.8 reflector at Trunkey, N.S.W., Australia, Sept. 8.44-8.48) find that nine co-added 120-s unfiltered exposures reveal a coma that is about 12" in diameter. 2008 UT R.A. (2000) Decl. Mag. Sept. 7.12889 18 26 29.39 +19 10 58.2 18.5 The available astrometry, the following preliminary parabolic orbital elements, and an ephemeris appear on MPEC 2008-R51. T = 2008 Nov. 26.757 TT Peri. = 91.752 Node = 268.172 2000.0 q = 1.79822 AU Incl. = 41.140 NOTICE TO SUBSCRIBERS The Central Bureau (and Minor Planet Center, and ICQ) are now again able to receive payments for subscriptions, line charges, and donations via credit card (a feature that had unfortunately been disabled for several months). The secure online order form can be accessed at website URL
http://www.cfa.harvard.edu/iau/services/OnLineOrders.html. V466 ANDROMEDAE Photometry of this cataclysmic variable (cf. IAUC 8971) from S. Shugarov and I. Volkov (Astronomical Institute, Slovak Academy of Science, 0.6-m AISAS teelscope; uncertainty 0.03-0.08 mag): Sept. 2.87 UT, U = 12.29, B = 13.16, V = 13.15; 3.08, 12.28, 13.19, 13.09, R_j = 13.31. (C) Copyright 2008 CBAT 2008 September 8 (8973) Daniel W. E. Green
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