COMMISSION 27 OF THE I. A. U.
            INFORMATION BULLETIN ON VARIABLE STARS
                         Number 3497

                                           Konkoly Observatory
                                           Budapest
                                           25 July 1990

                                           HU ISSN 0374 - 0676



             ANOTHER SUPERNOVA IN M83 (NGC 5236)

  During a search for supernovae in nearby galaxies using plates from the
Harvard College Observatory collection. I found an unrecorded supernova in
the SBc spiral galaxy M83 (NGC 5236). The image was discovered on Blue
photographic plates taken in Bloemfontein, South Africa, with a 3-inch Ross-
Fecker lens with a focal length of 530 mm.
  The supernova, located 97" west and 175" south of the nucleus, had the
following 8 (photographic) magnitudes as estimated from the sequence
published by McElroy and Humphreys (1982):

                1945 U.T.      B


                June 13.0   >15
                July  1.9   >14.5
                     13.9    14.2
                     30.9    13.7
                Aug   1.9    14.0
                      7.9    14.5

  No further plates were taken of the region in 1945, and no other
images could be found to approximately 15th magnitude thereafter. The
photographic patrol of that region of the sky recommended in March 1946.



                         WILLIAM LILLER
                         Instituto Isaac Newton
                         Ministerio de Educacion de Chile
                         Santiago



Reference:

McElroy, D.B. and Humphreys, R.M.: 1982, Publ. Astr. Soc. Pac., 94, 828. [BIBCODE 1982PASP...94..828M ]