------------------------------------------------------------------- THE ASTRONOMER Electronic Circular No 1176 1997 Mar 16 12.36UT 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.demon.co.uk/astronomer ------------------------------------------------------------------- COMET C/1997 D1 (MUELLER) Improved elements (cf E1173) by Brian Marsden at the Central Bureau: T 1997 Oct 11.7338 TT w 184.97834 ) e 1.00000000 O 279.16636 ) 2000.0 q 2.2476160 A.U. i 141.89219 ) Source: MPEC 1997-E01 Positions are geocentric Ephemeris by G.Hurst using EPH.EXE by Nick James: m = 7.5 + 5.0 log R + 10.0 log r Date R.A. (2000) Dec. R r Elong Mag. Motion h m o ' (AU) (AU) o "/hr P.A. 1997 Mar 13.00 11 29.68 +53 21.2 2.527 3.252 129.6 14.6 96 286 18.00 11 8.77 +54 3.0 2.524 3.214 126.3 14.6 94 280 23.00 10 47.60 +54 23.2 2.533 3.177 122.1 14.5 92 273 28.00 10 26.88 +54 22.2 2.552 3.141 117.5 14.5 89 266 1997 Apr 2.00 10 7.27 +54 1.6 2.581 3.104 112.5 14.5 85 260 7.00 9 49.26 +53 24.3 2.618 3.068 107.3 14.5 80 254 12.00 9 33.14 +52 33.7 2.663 3.032 101.9 14.4 74 248 17.00 9 19.04 +51 33.1 2.713 2.997 96.5 14.4 69 242 22.00 9 6.91 +50 25.6 2.767 2.962 91.1 14.4 64 237 27.00 8 56.64 +49 13.8 2.825 2.928 85.8 14.4 59 232 1997 May 2.00 8 48.05 +47 59.7 2.884 2.894 80.5 14.4 54 226 7.00 8 40.96 +46 45.0 2.945 2.860 75.3 14.4 50 221 12.00 8 35.19 +45 30.7 3.005 2.827 70.2 14.4 46 216 17.00 8 30.56 +44 17.8 3.064 2.795 65.2 14.4 42 212 22.00 8 26.90 +43 6.5 3.121 2.763 60.3 14.4 39 207 27.00 8 24.08 +41 57.4 3.175 2.731 55.5 14.4 37 202 Guy M Hurst