NGC 4559
NGC 4559 is an intermediate spiral galaxy with a weak inner ring structure in the constellation Coma Berenices. Distance estimates for NCG 4559 range from about 29 million light-years to 51 million light-years, averaging about 29 million light-years.
NGC 4559 is a member of the Coma I Group.
Two supernovae have been recorded in NGC 4559, A Type II-L supernova in 1941 and an unclassified supernova event in 2019.
In 2016, a luminous blue variable experienced a supernova-like outburst in NGC 4559, designated AT2016blu.
