TA e-circular

<title>TA e-circular</title>
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THE ASTRONOMER Electronic Circular No 480        1991 Jan 20 16.05UT
Ed:Guy M Hurst, 16,Westminster Close,  Kempshott Rise,  Basingstoke,
Hants, RG22 4PP, England. Telephone:   (0256)471074 Int:+44256471074
Telex: 94082518 Answerback: TAGUY                Microlink: MAG60138
JANET:GMH @ UK.AC.CAM.ASTRONOMY.STARLINK   GUYH@UK.AC.SUSSEX.CLUSTER
TELECOM GOLD: 10074:MIK2885                        PRESTEL 256471074
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MICROLINK
It is with regret that we advise our user group that the MICROLINK
service is to close at the end of February. It is hoped that we
will not lose any members and detailed guidance as to alternative
systems has today been issued to those on MICROLINK only via our
E-Circulars Nos E479a, E479b, E479c and E479d. For those on JANET
we assume the gateway to MICROLINK will continue to function until
the end of February but cannot guarantee this. We believe the
connection between TELECOM GOLD and MICROLINK has already ceased.

OCCULTATION BY 230 ATHAMANTIS ON 1991 JANUARY 21
We have just received a telephone call advising us that latest
predictions for this event show the expected track has shifted
westwards compared to the details in The Astronomer Vol 27 No 320
page 168 (1990 December). It is now recommended that monitoring
be undertaken by UK observers from 04.13-04.33UT and there is a
possibility the event could be visible from Eastern England.

SUPERNOVA 1991C IN ANONYMOUS GALAXY
J. Mueller reports her discovery of a supernova in an anonymous
galaxy at R.A. = 11h30m06s, Decl. = +5 37'.5 (equinox 1950.0). The
supernova (blue mag about 18), located 5".4 east and 4".7 south of
the galaxy's nucleus, was found on a plate taken Jan. 15 UT by C.
Brewer and J. D. Mendenhall with the 1.2-m Oschin Schmidt Telescope
in the course of the second Palomar Sky Survey.
IAUC 5167

PERIODIC COMET METCALF-BREWINGTON (1991a)
Revised elements:
T  1991 Jan   5.7531 E.T.    w 208.14010 )
e  0.59366700                O 187.06160 ) 1950.0
q  1.5921420 A.U.            i  13.03350 )
Source: MPC 17596    Positions are geocentric
m =  5.5 + 5.0 log R + 10.0 log r
  Date    R.A. (1950) Dec.     R       r     Elong  Mag.    Motion
          h  m       o  '     (AU)    (AU)     o          "/hr  P.A.
1991 Jan
  19.00   0 37.96   -3 59.5   1.650   1.598   69.5   8.6   105   73
  20.00   0 40.66   -3 47.3   1.658   1.599   69.2   8.6   106   73
  21.00   0 43.36   -3 35.0   1.665   1.600   68.9   8.6   106   73
  22.00   0 46.07   -3 22.6   1.673   1.601   68.6   8.7   106   73
  23.00   0 48.77   -3 10.2   1.680   1.602   68.3   8.7   106   73
  24.00   0 51.48   -2 57.7   1.688   1.604   68.0   8.7   106   73
  25.00   0 54.20   -2 45.1   1.695   1.605   67.7   8.7   106   73
  26.00   0 56.91   -2 32.5   1.703   1.606   67.4   8.7   107   73
  27.00   0 59.63   -2 19.9   1.711   1.608   67.1   8.7   107   73
  28.00   1  2.35   -2  7.1   1.718   1.609   66.8   8.7   107   73
  29.00   1  5.07   -1 54.4   1.726   1.611   66.5   8.8   107   73
  30.00   1  7.79   -1 41.6   1.734   1.612   66.2   8.8   107   73
  31.00   1 10.52   -1 28.7   1.742   1.614   65.9   8.8   107   73
1991 Feb
   1.00   1 13.24   -1 15.9   1.750   1.616   65.6   8.8   107   73
   2.00   1 15.97   -1  3.0   1.758   1.618   65.4   8.8   107   72
   3.00   1 18.69   -0 50.1   1.766   1.619   65.1   8.8   107   72
   4.00   1 21.42   -0 37.1   1.774   1.621   64.8   8.8   107   72
   5.00   1 24.15   -0 24.2   1.782   1.623   64.5   8.9   107   72
   6.00   1 26.88   -0 11.2   1.790   1.625   64.2   8.9   107   72
   7.00   1 29.61   +0  1.8   1.799   1.628   63.9   8.9   107   72

Guy M Hurst
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