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]
Magnitude 16Type Ia supernovaSN 2005el was discovered by theLick Observatory Supernova Search (LOSS) on September 25, 2005.[5][10] It was positioned39.0″ east and22.6″ south of the nucleus.[11]
^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.
^"SN 2005el".Transient Name Server.IAU. Retrieved11 February 2026.
