Themorphological classification of NGC 1819 is SB0 in the De Vaucouleurs system,[5] indicating this is a lenticular galaxy with a barred spiral organization. It is a gas-rich galaxy[8] with a circumnuclear ring structure that is undergoing intensestar formation.[9]
Type Ia supernova[5]SN 2005el was discovered in NGC 1819 on September 19, 2005. It was positioned39.0″ east and22.6″ south of the nucleus.[10]
^Pogge, Richard W.; Eskridge, Paul B. (October 1993). "Star Formation in the Disks of H I-Rich SO Galaxies".Astronomical Journal.106: 1405.Bibcode:1993AJ....106.1405P.doi:10.1086/116735.
^Contini, T.; et al. (1995). "Detection of circum-nuclear rings in barred spiral galaxies".Astrophysical Letters and Communications.31: 223.Bibcode:1995ApL&C..31..223C.
^Madison, D. R.; et al. (September 2005). Green, D. W. E. (ed.). "Supernova 2005el in NGC 1819".Central Bureau Electronic Telegrams.233: 1.Bibcode:2005CBET..233....1M.
