Spiral Galaxy NGC 7519 - Supernova 2001 id

Galaxy NGC 7519 and Supernova 2001 id
A 700 second exposure taken with an ST-9E CCD camera thru Kopernik's 20 inch F/8.1 telescope at 1:55 UT on December 12, 2001. The field of view is 8x8 arc minutes with North at the top.


Supernova 2001 id:

Discovered December 7th, 2001, by LOTOSS. (Lick Obs).

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 7519:

NGC 7519 is a 15th magnitude spiral galaxy in the constellation of Pegasus. It appears to be a face-on spiral galaxy with many arms.

There is some confusion about the identification of this galaxy in the New General Catalog (NGC) because of a later note by Dreyer in his Index Catalog (IC). Another astronomer had claimed that the position in the NGC was incorrect and he gave a position near another galaxy. Most modern listings of the NGC go back to the original position. It is exactly the position of a galaxy that fits the original discoverer's description. Although confusion remains, there is little doubt that NGC 7519 is the same as the galaxy included in the more modern Uppsala Observatory General Catalog of Galaxies (UGC) as "UGC 12424". Apparently, because of this confusion, the discoverers of Supernova 2001 id reported it as in "UGC 12424" rather than in NGC 7519.

Based on the published red shift, (and a Hubble Constant of 62 Km/sec per Mpc) a rough distance estimate for NGC 7519 and supernova 2001 id is 560 million light years, with a galaxy diameter of about 179,000 light years.



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George Normandin, KAS

December 19th, 2001