Markarian 50 is a young open cluster in the Milky Way galaxy.

Located at about 3,460 pc away in the constellation Cassiopeia,[2] its age is estimated at only about 7.5 million years old.

Markarian 50 may be a member of the OB association Cassiopeia OB2.

[2] The Wolf-Rayet star WR 157 is a member of Markarian 50.

This star cluster–related article is a stub.