------------------------------------------------------------------- THE ASTRONOMER Electronic Circular No 1428 1999 Jly 19 19.05UT 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.demon.co.uk/astronomer ------------------------------------------------------------------- COMET C/1999 N2 (LYNN) The comet reported on E1427 has been designated as above. Orbital elements by Brian Marsden: T 1999 July 23.0990 TT w 357.81600 ) e 1.00000000 O 254.32200 ) 2000.0 q 0.7609600 A.U. i 112.44300 ) Source: IAUC 7224 Positions are geocentric Ephemeris by Guy Hurst using EPH.EXE by Nick James: m = 9.5 + 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. 1999 July 19.00 10 41.04 -4 39.1 0.634 0.765 48.8 7.3 451 49 20.00 10 49.79 -2 43.2 0.652 0.763 48.7 7.4 426 48 21.00 10 57.95 -0 52.8 0.671 0.762 48.6 7.5 401 48 22.00 11 5.54 +0 52.0 0.692 0.761 48.5 7.5 376 47 23.00 11 12.60 +2 31.2 0.714 0.761 48.4 7.6 352 47 24.00 11 19.17 +4 4.8 0.736 0.761 48.3 7.7 330 46 25.00 11 25.29 +5 33.2 0.760 0.762 48.2 7.7 308 46 26.00 11 30.97 +6 56.4 0.784 0.763 48.1 7.8 288 45 27.00 11 36.27 +8 14.7 0.809 0.765 47.9 7.9 269 45 28.00 11 41.20 +9 28.5 0.834 0.767 47.8 8.0 252 45 29.00 11 45.79 +10 38.0 0.860 0.770 47.6 8.0 236 44 30.00 11 50.09 +11 43.5 0.886 0.773 47.4 8.1 221 44 31.00 11 54.09 +12 45.3 0.913 0.777 47.1 8.2 207 43 1999 Aug 1.00 11 57.84 +13 43.6 0.939 0.781 46.9 8.3 194 43 2.00 12 1.35 +14 38.7 0.966 0.785 46.6 8.4 183 43 3.00 12 4.64 +15 30.7 0.993 0.791 46.4 8.5 172 42 4.00 12 7.73 +16 20.1 1.019 0.796 46.1 8.6 162 42 5.00 12 10.64 +17 6.8 1.046 0.802 45.8 8.6 153 42 6.00 12 13.38 +17 51.2 1.073 0.808 45.5 8.7 144 41 7.00 12 15.96 +18 33.3 1.100 0.815 45.1 8.8 136 41 8.00 12 18.40 +19 13.4 1.126 0.822 44.8 8.9 129 41 9.00 12 20.71 +19 51.5 1.152 0.830 44.5 9.0 123 40 10.00 12 22.90 +20 27.9 1.178 0.838 44.1 9.1 117 40 11.00 12 24.98 +21 2.7 1.204 0.846 43.8 9.2 111 40 12.00 12 26.96 +21 35.9 1.230 0.854 43.4 9.3 106 40 13.00 12 28.85 +22 7.6 1.255 0.863 43.1 9.4 101 40 14.00 12 30.65 +22 38.1 1.280 0.872 42.8 9.4 97 39 15.00 12 32.38 +23 7.2 1.305 0.882 42.4 9.5 92 39 16.00 12 34.03 +23 35.3 1.330 0.891 42.1 9.6 89 39 17.00 12 35.62 +24 2.2 1.354 0.901 41.7 9.7 85 39 18.00 12 37.15 +24 28.1 1.378 0.912 41.4 9.8 82 39 19.00 12 38.63 +24 53.0 1.401 0.922 41.1 9.9 79 39 20.00 12 40.06 +25 17.1 1.425 0.933 40.8 10.0 76 39 21.00 12 41.44 +25 40.3 1.447 0.944 40.5 10.1 73 39 22.00 12 42.77 +26 2.8 1.470 0.955 40.2 10.1 71 39 23.00 12 44.08 +26 24.5 1.492 0.966 39.9 10.2 69 39 24.00 12 45.34 +26 45.5 1.514 0.978 39.6 10.3 67 39 25.00 12 46.58 +27 5.9 1.535 0.989 39.4 10.4 65 39 26.00 12 47.78 +27 25.7 1.556 1.001 39.1 10.5 63 39 27.00 12 48.96 +27 44.9 1.577 1.013 38.9 10.5 61 39 28.00 12 50.12 +28 3.6 1.597 1.025 38.6 10.6 60 39 29.00 12 51.25 +28 21.8 1.617 1.038 38.4 10.7 58 40 30.00 12 52.37 +28 39.5 1.637 1.050 38.2 10.8 57 40 31.00 12 53.47 +28 56.8 1.656 1.063 38.1 10.9 56 40 Guy M Hurst