The Copeland Septet is a group of galaxies in the constellation Leo that includes NGC 3748, NGC 3754, NGC 3750, NGC 3751, NGC 3745, NGC 3753, and NGC 3746. The group was discovered by British astronomer Ralph Copeland in 1874. The location of Copeland’s Septet is about three degrees northwest of third magnitude star 93 Leonis.
The redshift of the brightest member, NGC 3753 places Copelands Septet as a part of the Coma Supercluster.
NGC 3750 is a barred lenticular galaxy located in the constellation of Leo. It is located 450 million light-years away from Earth. NGC 3750 has a surface brightness of magnitude 23.7 and is classified a LINER galaxy by SIMBAD, meaning it has a nucleus, presenting an emission spectrum characterized by broad lines of weakly ionized atoms.