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Circular No. 8614 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://cfa-www.harvard.edu/iau/cbat.html ISSN 0081-0304 Phone 617-495-7440/7244/7444 (for emergency use only) COMET P/2005 T2 (CHRISTENSEN) E. J. Christensen reports his discovery of a comet on CCD images taken with the Mt. Lemmon Survey 1.5-m reflector, the object showing a moderately condensed 7" coma with a faint 10" tail spanning p.a. 220-240 deg on four co-added 180-s frames (discovery observation tabulated below). 2005 UT R.A. (2000) Decl. Mag. Oct. 7.21163 0 49 48.96 +18 35 58.7 19.9 The available astrometry, the following preliminary orbital elements, and an ephemeris appear on MPEC 2005-T66. T = 2005 Mar. 18.933 TT Peri. = 56.235 e = 0.42490 Node = 258.152 2000.0 q = 2.25287 AU Incl. = 8.762 a = 3.91735 AU n = 0.127121 P = 7.75 years COMET P/2005 T3 (READ) M. T. Read reports his discovery of a comet on CCD mosaic images obtained with the Spacewatch 0.9-m f/3 reflector, the object noted as diffuse with a short tail toward the southeast (discovery observation below). Follow-up observations by J. V. Scotti with the 1.8-m f/2.7 reflector on Oct. 8.41-8.48 UT show a possible very faint tail. 2005 UT R.A. (2000) Decl. Mag. Oct. 7.33306 2 00 18.71 +12 27 31.9 20.6 The available astrometry, the following very preliminary orbital elements, and an ephemeris appear on MPEC 2005-T67. T = 2004 Nov. 20.230 TT Peri. = 337.154 e = 0.26759 Node = 27.805 2000.0 q = 5.92218 AU Incl. = 5.804 a = 8.08584 AU n = 0.042866 P = 22.99 years (809) LUNDIA A. Kryszczynska, Poznan Astronomical Observatory, and colleagues have reported on CBET 239 that their observations indicate a binary nature for (809) and call for additional photometry and direct imaging. (C) Copyright 2005 CBAT 2005 October 11 (8614) Daniel W. E. Green
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