------------------------------------------------------------------- THE ASTRONOMER Electronic Circular No 1990 2004 Apr 16 18.05UT 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 ------------------------------------------------------------------- COMET C/2004 F4 (BRADFIELD) Brian Marsden has published revised orbital elements on MPC 2004-H05 based on measures during April 15/16 from the SOHO-LASCO coronagraph C3: T 2004 Apr 17.0280 TT w 332.00700 ) e 1.00000000 O 222.56900 ) 2000.0 q 0.1717100 A.U. i 62.86200 ) Source: MPC2004-HO5 Positions are geocentric m = 10.0 + 5.0 log R + 10.0 log r Ephemeris by Hurst using EPH.EXE by Nick James: Date R.A. (2000) Dec. R r Elong Mag. Motion h m o ' (AU) (AU) o "/hr P.A. 2004 Apr 15.00 1 59.92 +1 55.0 0.917 0.191 10.2 2.6 272 321 16.00 1 54.42 +3 35.9 0.881 0.177 7.8 2.2 370 321 17.00 1 47.46 +5 48.4 0.852 0.172 4.9 2.0 460 323 18.00 1 39.61 +8 27.6 0.833 0.176 2.7 2.1 514 325 19.00 1 31.72 +11 20.4 0.827 0.190 4.2 2.4 520 327 20.00 1 24.51 +14 13.1 0.830 0.210 7.3 2.8 491 330 21.00 1 18.31 +16 56.5 0.841 0.234 10.5 3.3 444 333 22.00 1 13.18 +19 26.5 0.858 0.261 13.3 3.8 395 335 23.00 1 9.02 +21 42.2 0.878 0.290 15.9 4.3 349 338 24.00 1 5.71 +23 44.3 0.900 0.319 18.2 4.8 309 341 25.00 1 3.09 +25 34.5 0.924 0.348 20.2 5.2 274 343 26.00 1 1.07 +27 14.1 0.948 0.378 22.0 5.7 246 346 27.00 0 59.52 +28 44.5 0.973 0.407 23.6 6.0 221 348 28.00 0 58.38 +30 7.1 0.998 0.436 25.1 6.4 201 351 29.00 0 57.56 +31 22.9 1.023 0.464 26.4 6.7 184 353 30.00 0 57.02 +32 32.9 1.048 0.492 27.6 7.0 169 355 2004 May 1.00 0 56.70 +33 37.7 1.073 0.520 28.7 7.3 157 357 2.00 0 56.58 +34 38.1 1.097 0.547 29.8 7.6 146 359 3.00 0 56.62 +35 34.6 1.121 0.575 30.7 7.8 137 1 4.00 0 56.79 +36 27.6 1.145 0.601 31.6 8.1 129 3 5.00 0 57.08 +37 17.6 1.168 0.628 32.5 8.3 122 5 6.00 0 57.46 +38 4.8 1.191 0.654 33.3 8.5 116 6 7.00 0 57.92 +38 49.7 1.214 0.679 34.0 8.7 111 8 8.00 0 58.46 +39 32.3 1.236 0.705 34.8 8.9 106 9 9.00 0 59.05 +40 13.0 1.258 0.730 35.5 9.1 101 10 10.00 0 59.69 +40 52.0 1.279 0.754 36.1 9.3 97 11 11.00 1 0.36 +41 29.3 1.300 0.779 36.8 9.5 94 12 12.00 1 1.08 +42 5.2 1.321 0.803 37.4 9.7 90 13 13.00 1 1.82 +42 39.8 1.341 0.827 38.0 9.8 87 14 14.00 1 2.58 +43 13.1 1.361 0.851 38.6 10.0 85 14 15.00 1 3.35 +43 45.4 1.380 0.874 39.2 10.1 82 15 Correction: On TA E-Circular 1989, the last sentence should have ended: but will be a 14th mag CCD object by then. Guy M Hurst