Discovered: August 6th, 2000, by Masakatsu Aoki.
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 3949:
This 11.6 magnitude spiral galaxy is in the constellation of Ursa Major. A rough distance estimate for this galaxy is 42 million light years, and at that distance, the diameter would be 35,800 light years. A background elliptical galaxy is 1.6 arc minutes to the north (marked 'G' in the negative version of the Kopernik image).
Click below to
George Normandin, KAS
August 22nd, 2000