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Proper NameNone
Bayer DesignationNone
Flamsteed Number81 Ursae Majoris
HR (BSC)5109
ConstellationUrsa Major
Right Ascension13h 34m 7s
Declination+55° 20' 54"
Distance301 light years
92 parsecs
MagnitudeApparent: +5.59
Absolute: +0.78
Spectral ClassA0V white main sequence star
Optimum VisibilityApril / May (Usually visible from northern latitudes)
NotesA hot white star more than twice the diameter of the Sun and more than forty times as luminous. 81 Ursae Majoris is one of approximately 180 members of the Coma Berenices Neighbour Moving Group, a collection of stars with a common origin that are now spread over a range of some 150 light years.

Imagery provided by Aladin sky atlas


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