TA e-circular

<title>TA e-circular</title>
<pre>
THE ASTRONOMER Electronic Circular No 584        1991 Dec 9 21.03UT
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
-------------------------------------------------------------------
PERIODIC COMET SCHWASSMANN-WACHMANN 1
H. Kosai, National Astronomical Observatory of Japan, communicates
that M. Tsumura (Oishi Station) has observed an outburst of this
comet on a photograph taken Dec. 2.528 UT; the comet appeared
stellar, of mag 12-13, suggesting an early phase of outburst.
S.Larson, University of Arizona, independently observed the
outburst on Dec. 4, noting a fan tail at p.a. about 100 deg; two
30-min spectrograms (range 300-850 nm) show only continuum.
IAUC 5396

P/COMET SHOEMAKER-LEVY 7 (1991d1)
Further to the reports on E582 and E583 updated elements follow:
T  1991 Oct  27.3096 E.T.    w  91.75350 )
e  0.54246900                O 312.31910 ) 1950.0
q  1.6288580 A.U.            i  10.26250 )
Source: IAUC 5397    Positions are geocentric

m = 15.0 + 5.0 log R + 10.0 log r

Ephemeris by Hurst using a program by Nick James:

  Date    R.A. (1950) Dec.     R       r     Elong  Mag.    Motion
          h  m       o  '     (AU)    (AU)     o          "/hr P.A.
1991 Dec
   5.00   3 24.73  +41 24.1   0.727   1.673  155.0  16.5    28  179
  10.00   3 25.21  +40 24.9   0.747   1.685  152.9  16.6    31  171
  15.00   3 26.56  +39 22.3   0.772   1.698  150.2  16.7    33  162
  20.00   3 28.80  +38 18.5   0.801   1.713  147.1  16.9    36  154
  25.00   3 31.93  +37 15.3   0.834   1.728  143.7  17.0    38  146
  30.00   3 35.89  +36 14.1   0.872   1.745  140.2  17.1    40  139
1992 Jan
   4.00   3 40.64  +35 15.8   0.914   1.762  136.5  17.3    42  132
   9.00   3 46.12  +34 21.1   0.959   1.781  132.9  17.4    45  126
  14.00   3 52.25  +33 30.6   1.009   1.801  129.4  17.6    47  121
  19.00   3 58.97  +32 44.1   1.062   1.822  125.8  17.7    49  117

UNIVERSITY OF CANTERBURY GATEWAY
The University of Canterbury Computing Section have advised us that
e-mail from the UK formerly sent via the UKC-RELAY must now be
addressed differently as this machine is reserved for messages
destined for users at their site only. Mail for abroad can,
instead, be sent via UKNET-RELAY which is a separate machine
although based at the same site.
The editor notes the following changed addresses which have been
successfully tested:
Fischer, Daniel:
CBS%UKNET-RELAY::DE.MPG.MPIFR-BONN.MPIRBN::P515DFI
Jahn, Jost:
CBS%UKNET-RELAY.EROS::DE.HANSE.ABBS::J.JAHN
Korth, Stefan
CBS%UKNET-RELAY.EROS::DE.HANSE.ABBS::ST.KORTH

Guy M Hurst
</pre>