Asteria — interactive night sky map
Alcor (80 Ursae Majoris) is a star in the constellation Ursa Major with an apparent magnitude of 3.99. It lies about 82 light-years from Earth. It is visible to the naked eye under dark skies.
It is best placed in the evening sky around April. It is visible from the whole northern hemisphere and from southern latitudes down to about 35°S. It is circumpolar (never sets) north of latitude 35°N.