Discovered: September 8th, 2000, by the Lick Observatory Supernova Search Team, and independently by M. Armstrong, Rolvenden, Kent, England.
Follow this Link to a NASA Web site on supernovas. It has a very nice animation and a description of what these objects are.
Spiral Galaxy NGC 735:
NGC 735 is in the constellation of Triangulum. A rough distance estimate for this galaxy is 243 million light years, and at that distance, the diameter would be 127,500 light years. This is the brightest of three galaxies in Zwicky Galaxy Group 146. The other two compact elliptical galaxies are 16.2 and 16.4 magnitude. Another 16.7 magnitude galaxy appears to the right in our CCD image. NGC 735 was also the site of Supernova 1972l which reached a maximum magnitude of 15.0.
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George Normandin, KAS
October 20th, 2000