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NGC 2403

 

NGC 2403

 

NGC 2403 is a spiral galaxy of the Hubble type Sc, meaning it has well-evolved spiral arms and a small central core component. Despite being quite bright and relatively large, it was overlooked by Charles Messier and thus found no entry into his famous catalog. In fact, it is still little-known today, maybe because of its isolated location in Camelopardalis, the giraffe, a very inconspicuous constellation, which is, however, circumpolar for mid-northern latitudes.

NGC 2403 is known to be an outlying member of the M81 group of galaxies, and thus about 10-12 million light years distant. It has an apparent size of 17.8 x 11.0 arcminutes. In August 2004, a supernova (SN 2004dj) was discovered in this galaxy by the Japanese amateur astronomer Koichi Itagaki.


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© 2010 Walter Koprolin