NGC 4697 [SEP] constellation
NGC 4697
NGC 4697 (also known as Caldwell 52) is an elliptical galaxy some 40 to 50 million light-years away in the constellation Virgo. It is a member of the NGC 4697 Group, a group of galaxies also containing NGC 4731 and several generally much smaller galaxies This group is about 55 million light-years away; it is one of the many Virgo II Groups, which form a southern extension of the Virgo Supercluster of galaxies.
The distance to NGC 4697 is not known with high precision:
plateau-shaped light curve. The spectra of the supernova featured a progressive violet swift, which was explained by the presence of a proexisting outer shell of materials around the progenitor of the supernova.
Nearby galaxies.
NGC 4699 belongs in the NGC 4697 group according to Makarov and Karachentsev. Other members of the group include NGC 4697, NGC 4674, NGC 4700, NGC 4731, NGC 4742, NGC 4775, NGC 4781, NGC 4784, NGC 4790, NGC 4813, NGC 4948 and NGC 4958. It belongs