NGC 3877 is a type Sc spiral galaxy that was discovered by William Herschel on February 5, 1788. It is located south of the magnitude 3.7 star Chi Ursae Majoris in Ursa Major.
One supernova has been observed in NGC 3877: SN 1998S (TypeIIn, mag. 15.2) was discovered by the BAO Supernova Survey on 3 March 1998.
NGC 3877 is a member of the M109 Group, a group of galaxies located in the constellation Ursa Major that may contain over 50 galaxies. The brightest galaxy in the group is the spiral galaxy M109.