THE ASTRONOMER Electronic Circular No 683 1992 Nov 11 20.34UT
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 TELECOM GOLD: 10074:MIK2885
GMH at UK.AC.RUTHERFORD.STARLINK.ASTROPHYSICS STARLINK: RLSAC::GMH
GMH at UK.AC.CAM.ASTRONOMY.STARLINK STARLINK: CAVAD::GMH
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PERIODIC COMET SWIFT-TUTTLE (1992t)
Latest estimates reaching TA place m1 at around 5.0-5.5 by Nov 11.
An extension to the ephemeris on E678 follows:
m = 4.0 + 5.0 log R + 20.0 log r
Date R.A. (2000) Dec. R r Elong Mag. Motion
h m o ' (AU) (AU) o "/hr P.A.
1992 Nov
7.00 17 17.09 +35 43.1 1.165 1.130 62.6 5.4 279 138
8.00 17 23.15 +34 19.8 1.165 1.122 62.1 5.3 279 138
9.00 17 29.02 +32 55.8 1.166 1.113 61.5 5.3 279 139
10.00 17 34.70 +31 31.1 1.168 1.105 60.9 5.2 278 140
11.00 17 40.21 +30 5.9 1.170 1.097 60.3 5.1 277 140
12.00 17 45.55 +28 40.5 1.174 1.089 59.7 5.1 275 141
13.00 17 50.71 +27 15.1 1.178 1.081 59.1 5.0 273 142
14.00 17 55.72 +25 49.7 1.184 1.073 58.4 5.0 270 142
15.00 18 0.56 +24 24.7 1.190 1.066 57.7 4.9 268 142
16.00 18 5.26 +23 0.2 1.197 1.059 57.0 4.9 264 143
17.00 18 9.81 +21 36.3 1.204 1.052 56.3 4.8 261 143
18.00 18 14.21 +20 13.2 1.213 1.045 55.5 4.8 257 144
19.00 18 18.49 +18 50.9 1.222 1.038 54.8 4.8 253 144
20.00 18 22.63 +17 29.7 1.232 1.032 54.0 4.7 249 144
21.00 18 26.65 +16 9.5 1.243 1.026 53.3 4.7 245 144
22.00 18 30.55 +14 50.6 1.254 1.020 52.5 4.7 241 145
23.00 18 34.34 +13 32.8 1.266 1.014 51.7 4.6 236 145
24.00 18 38.02 +12 16.5 1.279 1.009 50.9 4.6 231 145
25.00 18 41.59 +11 1.4 1.292 1.003 50.1 4.6 227 145
26.00 18 45.06 +9 47.8 1.305 0.998 49.3 4.6 222 145
27.00 18 48.43 +8 35.6 1.319 0.994 48.4 4.5 217 145
28.00 18 51.72 +7 24.8 1.334 0.989 47.6 4.5 213 145
29.00 18 54.91 +6 15.6 1.349 0.985 46.8 4.5 208 146
30.00 18 58.02 +5 7.7 1.364 0.981 46.0 4.5 203 146
1992 Dec
1.00 19 1.05 +4 1.4 1.380 0.978 45.1 4.5 199 146
2.00 19 4.00 +2 56.4 1.396 0.975 44.3 4.5 194 146
3.00 19 6.88 +1 53.0 1.412 0.972 43.4 4.5 190 146
4.00 19 9.68 +0 50.9 1.428 0.969 42.6 4.5 186 146
5.00 19 12.42 -0 9.8 1.445 0.966 41.7 4.5 181 146
6.00 19 15.10 -1 9.0 1.462 0.964 40.9 4.5 177 146
7.00 19 17.72 -2 7.0 1.479 0.963 40.0 4.5 173 146
8.00 19 20.27 -3 3.6 1.496 0.961 39.2 4.5 169 146
9.00 19 22.77 -3 59.0 1.513 0.960 38.3 4.5 165 146
10.00 19 25.22 -4 53.0 1.530 0.959 37.5 4.6 162 146
11.00 19 27.62 -5 45.9 1.547 0.958 36.6 4.6 158 146
12.00 19 29.96 -6 37.6 1.565 0.958 35.8 4.6 155 146
13.00 19 32.27 -7 28.1 1.582 0.958 34.9 4.6 151 146
14.00 19 34.53 -8 17.5 1.599 0.959 34.1 4.7 148 146
15.00 19 36.75 -9 5.8 1.617 0.959 33.2 4.7 145 146
16.00 19 38.93 -9 53.1 1.634 0.960 32.4 4.7 142 146
BZ UMA
Gary Poyner, Birmingham, reports a recent outburst of this UG star:
1992 Oct 23.963UT, [13.7(Poyner); 26.052, 10.7 (Poyner); 26.979,
11.7 (P.Schmeer, Germany); 27.788, 12.4 (Poyner); 27.810, 12.4
(W.Worraker, Didcot); 28.721, 13.2 (Worraker).
PRODUCTION DELAY
We regret the delay in publication of our October magazine due to
late delivery by the cover printers. This should be sent out this
week.
Guy M Hurst