---------- Forwarded message ---------- Date: Sat, 28 Aug 2004 19:34:55 +0100 From: Denis Buczynski To: gmh@astro1.bnsc.rl.ac.uk Subject: E2031 URGENT ------------------------------------------------------------------- THE ASTRONOMER Electronic Circular No 2031 2004 Aug 28 18.10UT Ed:Guy M Hurst, 16,Westminster Close, Kempshott Rise, Basingstoke, Hants, RG22 4PP,England.Telephone/FAX(01256)471074Int:+441256471074 INTERNET: GUY@TAHQ.DEMON.CO.UK GMH at AST.STAR.RL.AC.UK WORLD WIDE WEB http://www.theastronomer.org ------------------------------------------------------------------- IAUC 8395 REPORTS COMET C/2004 Q2 (MACHHOLZ) J. J. Gonzalez, Leon, Spain, reports that a visual observation made from Alto del Castro with a 0.20-m reflector on Aug. 28.16 UT yielded total mag 10.9 and coma diameter 2'.3. P. Birtwhistle, Great Shefford, Berkshire, England, reports that CCD images obtained with a 0.30-m f/6.3 Schmidt-Cassegrain reflector on Aug. 28.15 show a coma of diameter 70" and a broad tail 5' long in p.a. 240 deg. R. Behrend, Geneva Observatory, reports that CCD images by C. Vuissoz and himself with the 1.20-m Euler reflector on Aug. 28.4 show a coma diameter of 1' and a 3' tail in p.a. 240 deg. Additional astrometry and the following preliminary parabolic orbital elements appear on MPEC 2004-Q58 (ephemeris: H = 6.0, n = 7.5). T = 2005 Jan. 27.370 TT Peri. = 14.807 Node = 95.921 2000.0 q = 1.28614 AU Incl. = 38.326 2004 TT R. A. (2000) Decl. Delta r Elong. Phase Mag. Aug. 23 4 10.35 -21 59.7 2.268 2.545 93.9 23.3 10.8 28 4 16.91 -22 24.6 2.174 2.492 96.0 23.8 10.7 Sept. 2 4 23.31 -22 52.1 2.082 2.438 98.1 24.2 10.5 7 4 29.51 -23 22.3 1.991 2.385 100.2 24.6 10.3 12 4 35.48 -23 55.0 1.901 2.331 102.2 25.0 10.2 17 4 41.18 -24 29.8 1.813 2.278 104.2 25.3 10.0 22 4 46.56 -25 06.3 1.727 2.225 106.1 25.7 9.8 27 4 51.58 -25 44.2 1.642 2.172 108.0 26.0 9.6 Oct. 2 4 56.20 -26 22.9 1.559 2.120 109.9 26.4 9.4 S (C) Copyright 2004 CBAT 2004 August 28 (8395) Daniel W. E. Green -- Denis Buczynski