THE ASTRONOMER Electronic Circular No 603       1992 Jan 23 18.31UT
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
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SUPERNOVA 1992A IN NGC 1380
We have received faxed copies of this field from Rob McNaught in
Australia and charts from the AAVSO. Using these sources together
with a download of the Guide Star Catalogue, the following e-chart
is now available:

\\\\\\SN1992A                        in NGC 1380
S,120,10,S
P,03h 34.5m  -35 09'  (1950)
O,60,45,13.2,?
-L,R,SN1992A
-S,SN/020.01
-G,60,60,180,50,180
R,11.7,87,104,A
R,12.3,96,86,B
R,13.0,27,80,C
R,13.8,89,60,D
R,14.2,58,61,E
R,15.3,47,57,F
R,15.5,80,86,G
M,13,3,34,26,72,81,62
M,14,11,40,18,46,54,83
M,15,30,54,7,60,16,64,15,67,77,40,116,20,77,36
M,15,90,73,47,94,117,114,115,92
M,16,22,10,1,66,107,56,67,81,105,97,56,93
M,16,57,42
E,32
////// Basic chart GSC2FIND ver 1.1; Seq: AAVSO+GMH

N. Suntzeff, Cerro Tololo Interamerican Observatory, reports that
photometry based on CCD data obtained by J. Parker, D. Hunter, and
T. Barnes with the CTIO 1.5-m and 0.9-m telescopes shows that SN
1992A reached maximum light around Jan. 16 UT.  The brightness at
maximum was V = 12.78.
IAUC 5432

COMET MUELLER (1991h1)
Herman Mikuz, Yugoslavia, has e-mailed a report that he saw this
comet on 1992 Jan 16 at m1=14.4 in 0.35-m Schmidt Cassegrain.
Although the initial elements and magnitude formula suggest the
comet could reach magnitude 6 during March, the solar elongation
will be very small and Rob McNaught (Australia) comments that with
an absolute magnitude of around 13 the comet might not survive
perihelion (cf E596):
  Date    R.A. (2000) Dec.     R       r     Elong  Mag.    Motion
          h  m       o  '     (AU)    (AU)     o          "/hr P.A.
1992 Mar
   4.00   1 27.85   -3 52.0   0.848   0.597   36.8  10.4   176  224
   9.00   1  9.99   -7 47.9   0.913   0.465   27.8   9.5   183  234
  14.00   0 46.70  -10 53.9   0.979   0.329   19.2   8.1   215  250
  19.00   0 12.92  -11 32.3   1.043   0.216   11.9   6.4   297  282
  24.00  23 36.31   -5 23.7   1.081   0.226   11.6   6.7   351  324
  29.00  23 18.55   +4 53.5   1.092   0.345   18.3   8.6   323  346
1992 Apr
   3.00  23 12.76  +15  3.1   1.106   0.481   25.8  10.0   295  356
   8.00  23 12.32  +24 26.6   1.132   0.612   32.6  11.1   270    2

Guy M Hurst