------------------------------------------------------------------- THE ASTRONOMER Electronic Circular No 887 1994 Sep 26 19.18UT Ed:Guy M Hurst, 16,Westminster Close, Kempshott Rise, Basingstoke, Hants, RG22 4PP,England. Telephone/FAX(0256)471074 Int:+44256471074 INTERNET: GMH at AST.STAR.RL.AC.UK or GMH at GXVG.AST.CAM.AC.UK ------------------------------------------------------------------- PERIODIC COMET MACHHOLZ 2 (1994o) Improved orbital elements which refer to the main nucleus 'A': T 1994 Sept 18.8010 TT w 149.25660 ) e 0.75026100 O 246.18080 ) 2000.0 q 0.7525510 A.U. i 12.78770 ) Source: IAUC 6081 Positions are geocentric Ephemeris by G.Hurst using EPH.EXE by N.James: m = 10.5 + 5.0 log R + 15.0 log r Date R.A. (2000) Dec. R r Elong Mag. Motion h m o ' (AU) (AU) o "/hr P.A. 1994 Sept 25.00 9 6.69 +20 55.9 0.731 0.760 49.0 8.0 145 137 30.00 9 20.41 +17 33.2 0.791 0.777 49.7 8.3 137 135 1994 Oct 5.00 9 33.51 +14 26.7 0.848 0.802 50.6 8.7 129 134 10.00 9 45.99 +11 34.4 0.902 0.834 51.7 9.1 122 133 15.00 9 57.83 +8 54.8 0.953 0.873 53.1 9.5 115 132 20.00 10 9.00 +6 26.4 1.000 0.916 54.7 9.9 108 132 25.00 10 19.50 +4 8.1 1.042 0.964 56.4 10.3 101 131 30.00 10 29.29 +1 59.0 1.080 1.014 58.4 10.8 94 131 1994 Nov 4.00 10 38.37 -0 1.8 1.113 1.067 60.6 11.2 88 132 9.00 10 46.70 -1 54.9 1.141 1.121 63.0 11.5 81 133 14.00 10 54.29 -3 40.9 1.165 1.176 65.6 11.9 75 134 19.00 11 1.11 -5 20.2 1.185 1.232 68.4 12.2 68 135 24.00 11 7.16 -6 53.4 1.200 1.288 71.4 12.5 62 137 29.00 11 12.41 -8 20.6 1.212 1.344 74.6 12.8 55 140 1994 Dec 4.00 11 16.82 -9 41.9 1.219 1.400 78.0 13.1 49 143 9.00 11 20.34 -10 57.3 1.224 1.456 81.7 13.4 43 148 14.00 11 22.96 -12 6.9 1.225 1.512 85.6 13.6 37 155 19.00 11 24.62 -13 10.4 1.224 1.567 89.7 13.9 31 164 24.00 11 25.29 -14 7.5 1.221 1.621 94.1 14.1 27 177 29.00 11 24.93 -14 57.8 1.217 1.676 98.6 14.3 24 195 Dan Green, Central Bureau, reports that the other components B, C,D and E are designated in order eastward from A and are therefore the fourth, third, second and fifth components mentioned on earlier TA E-Circulars Nos 881 and 882. To calculate ephemerides use the above elements but change T to Sept 18.866, 19.199, 19.206 and 19.267 respectively. DX AND Further visual estimates (cf E886): 1994 Sept 25.507, 12.1 (Y.Takenaka, Kyoto, Japan, 0.20-m SC) 25.696, 12.6 (S Takahashi, Dynic Astronomical Observatory, Shiga, Japan, 0.60-m reflector) Guy M Hurst