THE ASTRONOMER Electronic Circular No 562 1991 Sept 10 18.44UT Ed:Guy M Hurst, 16,Westminster Close, Kempshott Rise, Basingstoke, Hants, RG22 4PP, England. Telephone: (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 ------------------------------------------------------------------- SUPERNOVAE J. Mueller reports her discovery of three supernovae on plates taken by J. D. Mendenhall and herself with the 1.2-m Oschin Telescope at Palomar in the course of the Second Sky Survey: SN 1991as: is 8".7 east and 13".4 south of the center of an anonymous galaxy at R.A. = 22 46 10, Decl. = +7 54.6 (equinox 1950.0) and was of mag about 18 (blue) on Aug. 19 UT. A spectrum obtained on Sept. 4 by M. Schmidt, J. Gunn and D. Schneider with the Hale 5-m telescope (+ 4 shooter + spectrograph) tentatively indicates it is of type I. SN 1991at: is 20" east and 34" north of the nucleus of UGC 733 (R.A. = 1 08.0, Decl. = +16 20, equinox 1950.0) and was also of mag about 18 (blue) on Aug. 19 UT. The object is not on a red PSS II plate taken by Mueller on 1987 Oct. 18. A 1991 Sept. 4 spectrum by Schmidt et al. tentatively indicates that this is also of type I. SN 1991au: is 14" west and 2" south of the nucleus of UGC 11616 (R.A. = 20 40.3, Decl. = +63 19, equinox 1950.0) and was of mag about 18.5 (red) on Sept. 1 UT. A spectrum obtained by Schmidt et al. on Sept. 4 tentatively indicates that this is a type II. IAUC 5336 NOVA SCUTI 1991 Extended sequence (cf E561): \\\\\\ NvSct1991'c' preliminary chart S,120,10,S P,18h 44.4m -08 24' (1950) O,59,58,10.5,21 R,9.00,3,89,2 R,10.23,117,29,3 M,10,50,3 M,11,92,20,48,104,31,15,3,61,39,102,32,110 M,12,102,86,32,11,96,23,111,13,34,99,75,37 M,12,92,65,77,63,104,42,49,27,47,60,42,42 R,12.2,60,68,7 R,12.5,63,77,8 R,12.8,45,85,9 M,12,90,109,95,37,79,95,62,10,110,18,79,50 M,12,97,50,18,80,84,40,103,46 M,13,61,22,41,45,17,13,97,24,59,27,75,35,100,59 M,13,84,114,11,27,78,35,25,24,28,36,31,60,107,16 M,13,40,13,89,106,6,52,26,5,45,26,58,39 M,13,76,8,110,89,115,10,14,80,63,93,5,2,31,5 M,13,20,83,80,46,32,48,92,67,102,44,3,67,77,118 R,13.4,73,74,Q R,13.7,49,45,R R,14.3,61,63,S M,13,98,53,41,112,39,53,97,9,48,108,37,56 M,13,47,16,88,114,118,97,110,85,107,42,51,77,43,106 M,13,99,41,117,25,113,42 M,14,63,66 M,14,74,61 E,90 ////// Basic chart automatically generated by GSC2FIND ver 1.0 Guy M Hurst