THE ASTRONOMER Electronic Circular No 665 1992 Sept 2 21.45UT Ed:Guy M Hurst, 16,Westminster Close, Kempshott Rise, Basingstoke, Hants, RG22 4PP,England. Telephone/FAX(0256)471074 Int:+44256471074 Telex: 9312111261 Answerback: TA G JANET BOXES: GMH at UK.AC.CAM.ASTRONOMY.STARLINK or GUYH at UK.AC.SUSSEX.CLUSTER TELECOM GOLD: 10074:MIK2885 PRESTEL 256471074 ------------------------------------------------------------------- COMET BREWINGTON (1992p) Charles Morris, USA reports m1=11.5 on Aug 30.50UT (0.26-m refl.). The following elements are by Brian Marsden with ephemeris computed by Guy Hurst using EPH.EXE developed by Nick James: T 1992 June 20.9690 TT w 54.04000 ) e 1.00000000 O 346.22200 ) 2000.0 q 1.7038300 A.U. i 17.93500 ) Source: IAUC5599 Positions are geocentric m = 6.5 + 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. 1992 Sept 1.00 7 23.33 +36 45.9 2.373 1.945 53.2 11.3 82 94 2.00 7 26.04 +36 43.4 2.372 1.951 53.6 11.3 81 94 3.00 7 28.72 +36 40.8 2.372 1.957 54.0 11.3 81 95 4.00 7 31.37 +36 38.1 2.371 1.964 54.4 11.3 80 95 5.00 7 34.00 +36 35.3 2.370 1.970 54.8 11.3 79 95 6.00 7 36.61 +36 32.3 2.369 1.976 55.2 11.3 79 95 7.00 7 39.19 +36 29.3 2.368 1.983 55.7 11.3 78 96 8.00 7 41.75 +36 26.1 2.367 1.989 56.1 11.4 77 96 9.00 7 44.28 +36 22.9 2.366 1.996 56.5 11.4 77 96 10.00 7 46.79 +36 19.5 2.365 2.002 56.9 11.4 76 96 11.00 7 49.27 +36 16.1 2.364 2.009 57.4 11.4 75 97 12.00 7 51.72 +36 12.5 2.363 2.016 57.8 11.4 74 97 13.00 7 54.15 +36 8.9 2.362 2.023 58.3 11.4 74 97 14.00 7 56.56 +36 5.3 2.360 2.029 58.7 11.4 73 97 15.00 7 58.94 +36 1.5 2.359 2.036 59.2 11.5 72 97 16.00 8 1.29 +35 57.7 2.358 2.043 59.6 11.5 72 98 17.00 8 3.62 +35 53.9 2.357 2.050 60.1 11.5 71 98 18.00 8 5.92 +35 49.9 2.355 2.057 60.6 11.5 70 98 19.00 8 8.19 +35 46.0 2.354 2.064 61.1 11.5 70 98 20.00 8 10.44 +35 42.0 2.352 2.071 61.5 11.5 69 98 21.00 8 12.66 +35 37.9 2.351 2.078 62.0 11.5 68 99 22.00 8 14.86 +35 33.8 2.349 2.086 62.5 11.5 67 99 23.00 8 17.03 +35 29.7 2.347 2.093 63.0 11.6 67 99 24.00 8 19.17 +35 25.6 2.346 2.100 63.5 11.6 66 99 25.00 8 21.29 +35 21.4 2.344 2.107 64.0 11.6 65 99 26.00 8 23.38 +35 17.3 2.342 2.115 64.6 11.6 64 99 27.00 8 25.44 +35 13.1 2.340 2.122 65.1 11.6 64 99 28.00 8 27.47 +35 8.9 2.338 2.130 65.6 11.6 63 100 29.00 8 29.48 +35 4.7 2.336 2.137 66.1 11.6 62 100 30.00 8 31.46 +35 0.5 2.334 2.145 66.7 11.7 61 100 RS OPHIUCHI There has apparently been a sudden rapid brightening of this star as illustrated by the following visual estimates: 1992 Aug 30.886UT, 11.0 (W.Worraker, Didcot); 30.931, 11.2 (G.Poyner, Birmingham); 31.889, 10.3 (Worraker); Sept 1.817, 10.5 (P.Schmeer, Germany). Further estimates should be e-mailed to the Editor as they are obtained in addition to the usual monthly summaries to Tom Saville, Guy M Hurst