THE ASTRONOMER Electronic Circular No .9 1987 Mar 01  09.21UT.

Supernova 1987B in NGC 5850
R.Evans, Hazelbrook, NSW advises us that he has discovered a
supernova in NGC 5850 which is located at:
RA 15h04m.6 DEC +1 44'(1950).
The discovery was made on Feb 24.7UT when it was estimated that the
magnitude was about 15 and the offsets 75 arcsec west and 120
arcsec south of the nucleus.
The discovery was confirmed on Feb 27.7UT by G.Thompson/McNaught.
Rob McNaught advises us that he has measured a precise position
from a plate by A.Savaga with the UK Schmidt:
RA 15h04m30s.56 DEC +1 41'43".8(1950).
This yields offsets as:
71 arcsec west; 145 arcsec south.
Tom Cragg reports an approx.visual magnitude estimate of 14.4 on
Feb 27.70UT.
Editorial Notice
A further circular will be issued later today with an update of
news re SN 1987A.
The Editor will be away on business for the evenings of Mar 2,3,4,5
during which MAG60138 will continue to be monitored by Mark Hurst
but urgent discovery messages should be telephoned to Peter
Birtwhistle on (0883)842415.
T.

Supernova 1987B in NGC 5850
R.Evans, Hazelbrook, NSW advise