Spiral Galaxy NGC 3953 - Supernova 2001 dp

Galaxy NGC 3953 and Supernova 2001 dp
Image taken with an ST-9E CCD camera thru Kopernik's 20 inch F/8.1 telescope. Image taken under very poor seeing conditions at 2:30 UT on August 22, 2001. The field of view is 7.5x7.5 arc minutes with North at the top.

Supernova 2001 dp:

Discovered August 12th, 2001, by M. Migliardi and E. Dal Farra, Tourtour, France.

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 3953:

NGC 3953 is a spiral galaxy in the constellation of Ursa Major. It has a small, very bright active nucleus in a bright inner lens: 0.5 x 0.3 arc min. There is an inner ring structure just beyond the nucleus that is about 1.2 x 0.55 arc min. There are many knotty filamentary spiral arms and it has an anonymous companion galaxy near by.

Based on the published red shift, (and a Hubble Constant of 62 Km/sec per Mpc) a rough distance estimate for NGC 3953 is 56 million light years, with a diameter of about 111,400 light years.

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George Normandin, KAS

August 23th, 2001