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 ------------------------------------------------------------------- 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