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Circular No. 8964 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 O3 (BOATTINI) A. Boattini, University of Arizona, reports his discovery of a comet on CCD images taken with the Mt. Lemmon 1.5-m reflector (discovery observation tabulated below); four co-added 24-s exposures show moderate condensation, a coma diameter of 5"-6", and a faint tail about 30" long in p.a. 250-255 deg. Following posting on the Minor Planet Center's 'NEOCP' webpage, S. Foglia and L. Buzzi report that CCD images taken by R. Holmes with a 0.61-m telescope at Charleston, IL, U.S.A., on Aug. 1.4 UT show a diffuse coma of diameter 7", elongated in p.a. 235 deg. 2008 UT R.A. (2000) Decl. Mag. July 29.46129 4 20 33.03 +21 01 34.8 19.4 The available astrometry, the following preliminary parabolic orbital elements, and an ephemeris appear on MPEC 2008-P05. T = 2008 June 1.546 TT Peri. = 339.806 Node = 48.343 2000.0 q = 2.56893 AU Incl. = 31.342 COMETS C/2008 J7-J12 (SOHO) Further to IAUC 8962, additional apparent comets have been found on SOHO website images, all Kreutz sungrazers except for C/2008 J10 and C/2008 J12 (Meyer group); finder code GP = G. Pappa. C/2008 J7 was very small and slightly diffuse (mag 7.5-8). C/2008 J8 was very diffuse and very faint (mag about 8). C/2008 J9 was small and condensed (mag 7-7.5). C/2008 J10 was small and essentially stellar in appearance (mag about 7.5). C/2008 J11 was very small and slightly diffuse (mag about 8). C/2008 J12 was stellar in appearance; in C2 images it was of mag about 6.5, while in C3 it appeared very small and faint. Comet 2008 UT R.A.(2000)Decl. Inst. F MPEC C/2008 J7 May 1.631 2 39.7 +13 50 C2 HS 2008-L48 C/2008 J8 5.038 2 53.8 +14 54 C2 JR 2008-L48 C/2008 J9 5.338 2 55.6 +15 01 C2 MK 2008-L48 C/2008 J10 6.979 3 01.5 +17 34 C2 JR 2008-M10 C/2008 J11 7.588 3 04.3 +15 39 C2 GP 2008-M10 C/2008 J12 7.963 3 05.3 +17 32 C2/3 SY 2008-M10 (C) Copyright 2008 CBAT 2008 August 1 (8964) Daniel W. E. Green
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