Magnitude 14.0 supernova, SN2005cs, discovered in the Whirlpool galaxy on 28th June 2005.
Position(2000): RA 13 29 53.37 Dec +47 10 28.2
Offset RA -15 Dec -78 arcsec from nucleus.
It is located on the southern arm of "Whirlpool Galaxy" (M 51). On pre-discovery images, there is a bright star cluster and H II region in that location.