NGC 5012 is an intermediate spiral galaxy in the constellation of Coma Berenices. Its velocity with respect to the cosmic microwave background is , which corresponds to a Hubble distance of . However, 17 non-redshift measurements give a closer mean distance of . It was discovered by German-British astronomer William Herschel on 10 April 1785.
NGC 5012 is a LINER galaxy, i.e. a galaxy whose nucleus has an emission spectrum characterized by broad lines of weakly ionized atoms.
NGC 5012 group NGC 5012 is the largest and brightest member of a trio of galaxies. The other two galaxies in the NGC 5012 group (also known as LGG 336) are and .
Supernovae Two supernovae have been observed in NGC 5012: SN 1997eg (TypeIIn, mag. 15.6) was discovered by Japanese amateur astronomer Masakatsu Aoki on 4 December 1997. SN 2020kyg (TypeIax[02cx-like], mag. 19.79) was discovered by ATLAS on 24 May 2020.
See also List of NGC objects (5001–6000)
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