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IAUC 5153: 1991A; 1975U, 1978J; 1989u; 1990e

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IAUC number 

                                                  Circular No. 5153
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Telephone 617-495-7244/7440/7444 (for emergency use only)
TWX 710-320-6842 ASTROGRAM CAM     EASYLINK 62794505
MARSDEN or GREEN@CFA.BITNET    MARSDEN or GREEN@CFAPS2.SPAN


SUPERNOVA 1991A IN IC 2973
     C. Pennypacker, S. Perlmutter, S. Block, S. Carlson, N.
Hamilton, H. Marvin, R. Muller, and C. Smith communicate:  "The
Berkeley Automated Supernova Search reports the discovery of a
supernova of mag 17 located 28" east and 10" south of the galaxy IC
2973 (UGC 6872; R.A. = 11h51m15s.5, Decl. = +33 38'35", equinox
1950.0) in three separate images taken on Jan. 1 UT.  Subsequent to
discovery, the supernova was found to be present on images taken
1990 Dec. 13, 17, 22, 24, and 31.  On Dec. 13 its magnitude was
about 18.  There was no supernova visible on an image taken Dec. 6
to a limit (90-percent confidence level) of mag 18."


SUPERNOVAE 1975U AND 1978J IN ANONYMOUS GALAXIES
     R. H. McNaught, University of Adelaide, reports his discoveries
on SERC J atlas plates of two apparent supernovae located in anonymous
spiral galaxies.  SN 1975U, found on a U.K. Schmidt Telescope
(UKST) plate taken by M. E. Sim on 1975 Sept. 10 as an object of
magnitude j about 18, was located at R.A. = 0h26m53s.67, Decl. =
-60 21'04".3 (equinox 1950.0), or 6".5 east and 0".7 north of the
galaxy's center.  M. A. Read, Royal Observatory, Edinburgh, notes
that no image appears to a limit of B about 21 on a UKST plate taken
by T. G. Hawarden on 1975 Aug. 4.
     SN 1978J, found on UKST plates taken by P. R. Standen, is
located at R.A. = 22h22m34s.51, Decl. -67 25'39".8 (equinox 1950.0),
or 7".8 west and 3".8 north of the galaxy's center; estimated j
magnitudes: 1978 July 30, 17.5; Oct. 26, 20.5.  Read notes that no
image appears at the position of SN 1978J to a limit of B about 21
on a UKST plate taken by Standen on 1977 Oct. 12.


PERIODIC COMET KEARNS-KWEE (1989u)
     Total visual magnitude estimates by A. Hale, Las Cruces, NM
(0.41-m reflector):  1990 Nov. 19.33 UT, 14.0; 24.53, 13.7; Dec.
10.27, 13.7; 19.27, 13.8; 25.50, 13.5.


PERIODIC COMET WOLF-HARRINGTON (1990e)
     Total visual magnitude estimates by Hale:  1990 Dec. 18.16 UT,
13.3; 19.08, 13.4; 20.16, 13.3.


1991 January 4                 (5153)             Daniel W. E. Green

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