------------------------------------------------------------------- THE ASTRONOMER Electronic Circular No 1029 1995 Dec 30 14.39UT Ed:Guy M Hurst, 16,Westminster Close, Kempshott Rise, Basingstoke, Hants, RG22 4PP,England. Telephone/FAX(0256)471074 Int:+44256471074 INTERNET: GUY@TAHQ.DEMON.CO.UK GMH at AST.STAR.RL.AC.UK WORLD WIDE WEB http://www.demon.co.uk/astronomer ------------------------------------------------------------------- COMET C/1995 Y1 (HYAKUTAKE) The comet referred to on E1028 has been designated as above. The following preliminary parabolic orbital elements, by Dan Green, Central Bureau, are from 18 observations, Dec. 26-28: T = 1996 Feb. 23.938 TT Peri. = 45.516 Node = 195.863 2000.0 q = 1.06376 AU Incl. = 54.220 Ephemeris by G.Hurst using EPH.EXE by N.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. 1996 Jan 1.00 14 41.04 -23 43.7 1.681 1.379 55.1 10.0 138 77 2.00 14 44.98 -23 30.5 1.666 1.369 55.3 10.0 140 76 3.00 14 48.96 -23 16.5 1.650 1.359 55.4 9.9 142 75 4.00 14 52.98 -23 1.8 1.634 1.350 55.6 9.9 144 75 5.00 14 57.04 -22 46.4 1.619 1.340 55.7 9.8 146 74 6.00 15 1.13 -22 30.3 1.604 1.331 55.9 9.8 148 74 7.00 15 5.27 -22 13.3 1.589 1.321 56.0 9.7 150 73 8.00 15 9.44 -21 55.6 1.574 1.312 56.2 9.7 153 73 9.00 15 13.65 -21 37.0 1.559 1.303 56.3 9.6 155 72 10.00 15 17.90 -21 17.7 1.545 1.294 56.4 9.6 157 72 11.00 15 22.19 -20 57.5 1.530 1.285 56.6 9.5 159 71 12.00 15 26.51 -20 36.4 1.516 1.276 56.7 9.5 162 71 13.00 15 30.87 -20 14.4 1.503 1.267 56.8 9.4 164 70 14.00 15 35.28 -19 51.6 1.489 1.258 56.9 9.4 166 70 15.00 15 39.71 -19 27.9 1.476 1.250 57.0 9.3 169 69 16.00 15 44.19 -19 3.2 1.463 1.242 57.1 9.3 171 69 17.00 15 48.70 -18 37.7 1.450 1.233 57.1 9.2 173 68 18.00 15 53.24 -18 11.2 1.437 1.225 57.2 9.2 176 68 19.00 15 57.83 -17 43.7 1.425 1.218 57.3 9.1 178 67 20.00 16 2.44 -17 15.4 1.413 1.210 57.3 9.1 181 67 21.00 16 7.09 -16 46.1 1.401 1.202 57.4 9.0 183 66 22.00 16 11.77 -16 15.8 1.390 1.195 57.4 9.0 186 66 23.00 16 16.48 -15 44.6 1.379 1.187 57.4 8.9 188 65 24.00 16 21.22 -15 12.4 1.369 1.180 57.5 8.9 190 65 25.00 16 25.99 -14 39.3 1.358 1.173 57.5 8.9 193 64 26.00 16 30.79 -14 5.3 1.348 1.167 57.5 8.8 195 64 27.00 16 35.62 -13 30.4 1.339 1.160 57.5 8.8 197 63 28.00 16 40.47 -12 54.5 1.330 1.154 57.5 8.7 200 63 29.00 16 45.35 -12 17.8 1.321 1.147 57.5 8.7 202 63 30.00 16 50.25 -11 40.2 1.313 1.141 57.5 8.7 204 62 31.00 16 55.17 -11 1.8 1.305 1.135 57.4 8.6 206 62 Guy M Hurst