------------------------------------------------------------------- THE ASTRONOMER Electronic Circular No 1716 2001 Nov 25 15.16UT 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/2001 W2 (BATTERS) The comet announced on TA E-Circular 1713 has now been designated as above. Nick James, Chelmsford, reports astrometric results derived from images obtained by Denis Buczynski (station 978) with a 0.33-m f/3.3 Newtonian. Reductions were made using 24 GSC stars: 2001 11 22.76704 18 15 22.15 +23 32 21.6 978 2001 11 22.77420 18 15 23.60 +23 31 51.0 978 On IAUC 7760, A. Hale, Cloudcroft, NM, reports that this comet showed a 0'.8 coma and total visual magnitude 12.7 on Nov. 22.09 UT (0.41-m reflector). The following orbital elements are by Dan Green: T 2001 Dec 22.3530 TT w 140.48700 ) e 1.00000000 O 113.53500 ) 2000.0 q 1.0679600 A.U. i 115.52800 ) Source: IAUC 7760 Positions are geocentric 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. 2001 Nov 25.00 18 21.74 +21 0.3 1.426 1.160 53.8 12.4 193 150 26.00 18 24.46 +19 54.0 1.439 1.153 52.9 12.4 190 150 27.00 18 27.10 +18 49.0 1.453 1.147 51.9 12.4 186 150 28.00 18 29.67 +17 45.2 1.467 1.142 51.0 12.4 182 150 29.00 18 32.17 +16 42.6 1.481 1.136 50.1 12.4 179 150 30.00 18 34.60 +15 41.2 1.495 1.130 49.1 12.4 175 150 2001 Dec 1.00 18 36.98 +14 41.0 1.509 1.125 48.2 12.4 172 150 2.00 18 39.29 +13 42.0 1.524 1.120 47.2 12.4 168 150 3.00 18 41.55 +12 44.2 1.539 1.115 46.3 12.4 165 150 4.00 18 43.75 +11 47.6 1.554 1.111 45.3 12.4 162 150 5.00 18 45.90 +10 52.1 1.570 1.106 44.4 12.4 158 150 6.00 18 48.01 +9 57.7 1.585 1.102 43.4 12.4 155 150 7.00 18 50.07 +9 4.5 1.601 1.098 42.5 12.4 152 150 8.00 18 52.08 +8 12.2 1.616 1.094 41.5 12.4 149 150 9.00 18 54.05 +7 21.1 1.632 1.091 40.5 12.4 146 150 10.00 18 55.98 +6 31.0 1.647 1.088 39.6 12.4 143 150 11.00 18 57.88 +5 41.8 1.663 1.085 38.6 12.5 140 150 12.00 18 59.74 +4 53.7 1.679 1.082 37.6 12.5 138 150 13.00 19 1.56 +4 6.4 1.695 1.079 36.7 12.5 135 150 14.00 19 3.35 +3 20.1 1.710 1.077 35.7 12.5 133 150 15.00 19 5.11 +2 34.7 1.726 1.075 34.7 12.5 130 150 16.00 19 6.84 +1 50.2 1.741 1.073 33.8 12.5 128 150 17.00 19 8.54 +1 6.5 1.757 1.072 32.8 12.5 125 150 18.00 19 10.22 +0 23.6 1.772 1.070 31.8 12.5 123 150 19.00 19 11.87 -0 18.5 1.787 1.069 30.9 12.6 121 150 20.00 19 13.49 -0 59.9 1.802 1.069 29.9 12.6 119 149 21.00 19 15.09 -1 40.5 1.817 1.068 28.9 12.6 117 149 22.00 19 16.67 -2 20.4 1.832 1.068 28.0 12.6 115 149 23.00 19 18.22 -2 59.6 1.846 1.068 27.0 12.6 113 149 24.00 19 19.76 -3 38.2 1.861 1.068 26.0 12.6 111 149 25.00 19 21.28 -4 16.1 1.875 1.069 25.1 12.7 110 149 26.00 19 22.78 -4 53.4 1.889 1.070 24.1 12.7 108 149 27.00 19 24.26 -5 30.1 1.903 1.071 23.2 12.7 106 149 Guy M Hurst