THE ASTRONOMER Electronic Circular No 701 1993 Jan 17 12.40UT
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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COMET MUELLER (1993a)
Preliminary parabolic orbital elements from 18 observations, Jan.
2-6 :
T 1994 Jan 2.3030 TT w 135.33400 )
e 1.00000000 O 144.41300 ) 2000.0
q 1.7281000 A.U. i 124.66800 )
Source: IAUC 5689 Positions are geocentric
m = 5.0 + 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.
1993 Jan
17.00 9 26.06 +50 54.5 3.543 4.386 145.1 14.2 56 314
18.00 9 24.33 +51 9.8 3.532 4.377 145.3 14.2 56 313
19.00 9 22.55 +51 24.9 3.522 4.368 145.4 14.1 56 312
20.00 9 20.74 +51 40.0 3.512 4.358 145.5 14.1 57 311
21.00 9 18.88 +51 54.8 3.502 4.349 145.5 14.1 57 310
22.00 9 16.99 +52 9.5 3.493 4.340 145.5 14.1 57 310
23.00 9 15.05 +52 24.0 3.484 4.331 145.5 14.1 57 309
24.00 9 13.08 +52 38.2 3.476 4.322 145.3 14.1 57 308
25.00 9 11.07 +52 52.3 3.468 4.313 145.2 14.0 58 307
26.00 9 9.03 +53 6.1 3.461 4.304 145.0 14.0 58 306
27.00 9 6.95 +53 19.6 3.453 4.295 144.7 14.0 58 306
28.00 9 4.83 +53 33.0 3.447 4.286 144.4 14.0 58 305
29.00 9 2.69 +53 46.0 3.440 4.277 144.1 14.0 58 304
30.00 9 0.51 +53 58.8 3.434 4.268 143.7 14.0 58 303
31.00 8 58.30 +54 11.3 3.429 4.259 143.2 14.0 58 302
1993 Feb
1.00 8 56.06 +54 23.5 3.423 4.250 142.7 14.0 58 302
2.00 8 53.79 +54 35.4 3.418 4.241 142.2 13.9 58 301
3.00 8 51.50 +54 46.9 3.414 4.231 141.7 13.9 57 300
4.00 8 49.18 +54 58.2 3.410 4.222 141.1 13.9 57 299
5.00 8 46.83 +55 9.1 3.406 4.213 140.4 13.9 57 298
6.00 8 44.47 +55 19.7 3.403 4.204 139.8 13.9 57 297
7.00 8 42.08 +55 30.0 3.400 4.195 139.1 13.9 57 296
8.00 8 39.68 +55 39.8 3.397 4.186 138.4 13.9 57 296
9.00 8 37.26 +55 49.4 3.395 4.177 137.6 13.9 56 295
10.00 8 34.82 +55 58.6 3.393 4.168 136.8 13.9 56 294
11.00 8 32.38 +56 7.4 3.391 4.159 136.0 13.8 56 293
12.00 8 29.92 +56 15.8 3.390 4.149 135.2 13.8 55 292
Herman Mikuz, Slovenia, e-mails that CCD photometry obtained with a
0.20-m f/2 Baker-Schmidt camera (+ V filter) shows the comet as
having a 0'.6 coma of V = 14.0 and a highly condensed, almost
starlike centre, with a delicate 3' fan-shaped tail in p.a. 180deg.
FN ANDROMEDAE
Gary Poyner, Birmingham reports a faint outburst of this UG star:
Jan 12.836: 14.0 mag Class 1 (Poyner)
12.845: 14.1 1 (Poyner)
It has been confirmed by Patrick Schmeer, Germany on Jan 12.845 at
mag 14.0v.
Gary mentions that the last outburst was on 1992 Sept 5 at mv=13.2
Guy M Hurst