------------------------------------------------------------------- THE ASTRONOMER Electronic Circular No 1839 2002 Dec 30 20.15UT 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/2002 Y1 (JUELS-HOLVORCEM) Charles Juels of Arizona and Paulo Holvorem of Brazil have reported their detection of a new comet on CCD images according to a report on IAUC 8039. The following positions have appeared on M.P.E.C. 2002-Y50: 2002 12 28.43892 13 24 01.30 +16 49 16.3 15.1 T 678 2002 12 28.45155 13 24 02.55 +16 49 40.3 15.3 T 678 2002 12 28.50192 13 24 08.27 +16 50 43.6 15.9 T 678 2002 12 28.52149 13 24 10.42 +16 51 11.7 16.0 T 678 678 Fountain Hills. Observers C. W. Juels, P. R. Holvorcem. 0.12-m f/5.0 refractor + CCD. Holvercem reports that co-adding five 45-s and one 90-s exposures taken around Dec. 28.5 UT reveals a coma 1'.8 in diameter. T = 2003 Apr. 10.532 TT Peri. = 131.057 Node = 166.893 2000.0 q = 0.67088 AU Incl. = 106.303 Ephemeris by Guy Hurst using EPH.EXE by Nick James: m = 11.0 + 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. 2002 Dec 27.00 13 21.32 +16 17.1 1.842 1.985 83.4 15.3 86 51 28.00 13 23.18 +16 39.3 1.813 1.971 84.1 15.2 88 50 29.00 13 25.09 +17 2.3 1.784 1.957 84.8 15.2 90 50 30.00 13 27.02 +17 26.3 1.755 1.943 85.5 15.1 93 49 31.00 13 29.00 +17 51.2 1.727 1.929 86.2 15.0 95 48 2003 Jan 1.00 13 31.02 +18 17.1 1.698 1.915 86.8 15.0 98 48 2.00 13 33.09 +18 44.0 1.670 1.901 87.5 14.9 101 47 3.00 13 35.20 +19 12.0 1.642 1.887 88.2 14.8 104 47 4.00 13 37.36 +19 41.2 1.614 1.872 88.8 14.8 107 46 5.00 13 39.58 +20 11.5 1.586 1.858 89.4 14.7 110 46 6.00 13 41.85 +20 43.0 1.558 1.844 90.1 14.6 114 45 7.00 13 44.18 +21 15.7 1.531 1.829 90.7 14.5 117 45 8.00 13 46.58 +21 49.8 1.504 1.815 91.3 14.5 121 44 9.00 13 49.04 +22 25.2 1.477 1.801 91.9 14.4 125 44 10.00 13 51.58 +23 2.0 1.450 1.786 92.4 14.3 129 43 11.00 13 54.20 +23 40.3 1.424 1.772 93.0 14.3 133 43 12.00 13 56.90 +24 20.1 1.397 1.758 93.5 14.2 138 43 13.00 13 59.68 +25 1.4 1.372 1.743 94.0 14.1 143 42 14.00 14 2.57 +25 44.4 1.346 1.729 94.5 14.0 147 42 15.00 14 5.56 +26 29.0 1.321 1.714 95.0 13.9 153 42 16.00 14 8.66 +27 15.3 1.296 1.700 95.5 13.9 158 42 17.00 14 11.88 +28 3.4 1.271 1.685 95.9 13.8 163 42 18.00 14 15.23 +28 53.3 1.247 1.671 96.3 13.7 169 41 19.00 14 18.72 +29 45.1 1.224 1.656 96.6 13.6 175 41 20.00 14 22.35 +30 38.7 1.200 1.641 96.9 13.5 181 41 21.00 14 26.15 +31 34.3 1.178 1.627 97.2 13.5 188 41 22.00 14 30.13 +32 31.7 1.156 1.612 97.5 13.4 194 41 23.00 14 34.30 +33 31.2 1.134 1.598 97.7 13.3 201 41 24.00 14 38.68 +34 32.6 1.113 1.583 97.8 13.2 208 42 25.00 14 43.28 +35 35.9 1.092 1.568 97.9 13.1 215 42 26.00 14 48.12 +36 41.1 1.073 1.553 98.0 13.1 223 42 27.00 14 53.23 +37 48.2 1.053 1.539 98.0 13.0 230 42 28.00 14 58.64 +38 57.1 1.035 1.524 97.9 12.9 238 43 29.00 15 4.36 +40 7.6 1.017 1.509 97.8 12.8 245 43 30.00 15 10.42 +41 19.7 1.000 1.495 97.7 12.7 253 44 31.00 15 16.86 +42 33.1 0.984 1.480 97.4 12.7 260 45 Guy M Hurst