Tags: Star.
Lambda Ursae Majoris (Lambda UMa λ Ursae Majoris λ UMa) is a star in the northern circumpolar constellation of Ursa Major. It has the proper names Tania Borealis (former Tania borealis).This star has an apparent visual magnitude of +3.45 making it one of the brighter members of the constellation. The distance to this star has been measured directly using the parallax technique which yields a value of roughly 138 light-years (42 parsecs) with a 4% margin of error.
