THE ASTRONOMER Electronic Circular No 695 1992 Dec 26 13.01UT
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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SUPERNOVA 1992bn IN ANONYMOUS GALAXY
Christian Pollas, Observatoire de la Cote d'Azur, reports his
discovery of an apparent supernova (mag about 19) on technical pan
films taken with the 0.9-m Schmidt telescope on Dec. 13.83 and
14.84 UT (limiting mag 21-22). SN 1992bn is located at R.A. =
1h26m20s.50, Decl. = +8 53'24".8 (equinox 1950.0), or 1".2 east and
6".8 north of a galaxy of mag about 16.5 having end figures 20s.58,
31".6. Nothing is visible either on a similar film taken in 1989
or on the Palomar Sky Survey prints. A nearby star of mpg about 16
has end figures 26s.26, 48".0.
IAUC 5678
COMET OHSHITA (1992a1)
Updated elements (cf E690):
T 1992 Nov 1.5620 TT w 309.97900 )
e 0.99054000 O 138.35200 ) 2000.0
q 0.6635700 A.U. i 115.11400 )
Source: IAUC 5679 Positions are geocentric
Ephemeris by Hurst using EPH.EXE by N.James:
m = 12.0 + 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.
1992 Dec
26.00 14 25.97 +45 56.1 0.822 1.251 87.2 12.5 320 23
28.00 14 36.02 +49 49.5 0.830 1.280 89.4 12.7 315 24
30.00 14 47.28 +53 35.5 0.842 1.310 91.4 12.8 307 26
1993 Jan
1.00 14 59.97 +57 11.6 0.858 1.340 93.1 12.9 297 27
3.00 15 14.39 +60 35.4 0.878 1.369 94.6 13.1 284 30
5.00 15 30.89 +63 45.0 0.901 1.399 95.8 13.2 271 33
7.00 15 49.87 +66 38.5 0.927 1.428 96.8 13.4 256 36
9.00 16 11.78 +69 14.3 0.956 1.458 97.5 13.5 241 40
11.00 16 37.08 +71 30.8 0.988 1.487 97.9 13.7 226 45
13.00 17 6.08 +73 26.7 1.023 1.517 98.2 13.9 211 51
15.00 17 38.84 +75 0.6 1.060 1.546 98.3 14.0 197 58
17.00 18 14.91 +76 11.6 1.098 1.576 98.2 14.2 183 66
19.00 18 53.17 +76 59.9 1.139 1.605 97.9 14.3 170 74
21.00 19 32.00 +77 26.7 1.181 1.634 97.6 14.5 159 82
23.00 20 9.60 +77 34.4 1.225 1.663 97.1 14.6 147 90
25.00 20 44.52 +77 26.7 1.270 1.692 96.5 14.8 137 97
27.00 21 15.93 +77 7.3 1.316 1.721 95.8 15.0 127 104
29.00 21 43.60 +76 39.6 1.363 1.750 95.0 15.1 118 109
31.00 22 7.71 +76 6.7 1.410 1.778 94.2 15.2 110 113
IAUC 5679
NOVA IN MESSIER 31
The positions in E693 for RA were inadvertently rounded off in RA
and should read: 00h40m16.34s (SAOC) 00h40m16.28s (PPM)
Brian Manning reports that star residuals were 1.5"(SAOC);0.5"(PPM)
PERIODIC COMET SCHAUMASSE (1992x)
Herman Mikuz, Slovenia reports a recent observation with the 0.20-m
f/2 Baker-Schmidt camera + V filter and ST-6:
1992 12 20.79 V=14.2 (AAVSO Sequence)
Coma diameter 1.5', DC5. Comet diffuse with condensation.
This report suggests the comet is much fainter than predicted (see
E691 for further details),
Guy M Hurst