THE ASTRONOMER Electronic Circular No 618       1992 Mar 11 19.09UT
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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MARKARIAN 421
John Toone, Worsley, Manchester, England and Bill Worraker, Didcot,
England have independently reported an outburst of Markarian 421 =
QSO 1101+384 (RA 11h01m42s DEC +38 28'36"[1950]) as follows:
1992 Jan 29.95UT, 13.5 (Toone)
     Feb  3.24UT, 13.2 (Toone)
         10.11UT, 13.2 (Worraker)
         11.24UT, 13.2 (Toone)
         21.92UT, 13.0 (Worraker)
         23.96UT, 13.1 (Toone)
     Mar  7.95UT, 12.9 (Toone)
          8.87UT, 12.6 (Toone)
          8.92UT, 12.6 (Worraker)
         10.91UT, 12.6 (Worraker)
Previous outbursts were observed by Toone during 1982 April and
1989 April.

ON 231
Further to the report on E613, Gary Poyner, Birmingham reports that
he has seen the object visually:
1992 Mar 6.031UT, 15.0.

SUPERNOVA 1992I IN NGC 2565
C. Pollas, Observatoire de la Cote d'Azur, reports the discovery by
Christian Buil, on CCD frames obtained Feb. 29.93 UT with a 0.50-m
reflector at Toulouse, of an apparent supernova (mag about 18) in
NGC 2565 = Markarian 386.  A Tech Pan exposure taken by Pollas on
Mar. 1.0 UT has a limiting magnitude similar to that of the Palomar
Sky Survey prints, which show no object at the position of SN
1992I, measured by Pollas as R.A. = 8h16m50s.21,
Decl.=+22 11'28".5 (equinox 1950.0), or 28".5 west and 7".1 north
of the galaxy's centre. A bright star near the galaxy's nucleus has
end figures 52s.68, 10".5.
IAUC 5464

SUPERNOVAE 1987Q AND 1987R
Jean Mueller reports her discovery of two apparent supernovae on
photographs taken by herself on 1987 Nov. 30 with the 1.2-m Oschin
Telescope in the course of the second Palomar Sky Survey.  SN 1987Q
in UGC 3845 (R.A. = 7h23m.0, Decl. = +47 12', equinox 1950.0) was
at blue mag about 16 and located 15".5 west and 49" south of the
galaxy's nucleus, in a spiral arm.  SN 1987R in MCG +07-16-001
(R.A.= 7h21m.8, Decl. = +42 07') was at blue mag about 18.5 and
located 9".4 west and 6".7 south of the galaxy's center.  Neither
SN 1987Q nor SN 1987R is visible on original POSS prints, and N.
Reid reports that neither appears on a red plate taken 1987 Jan. 3
by G. Carlson in the course of the second POSS.
IAUC 5465

Guy M Hurst