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Proper NameAlcor
Bayer Designationg Ursae Majoris
Flamsteed Number80 Ursae Majoris
HR (BSC)5062
HD116842
ConstellationUrsa Major
Right Ascension13h 25m 50s
Declination+54° 54' 27"
Distance81 light years
25 parsecs
MagnitudeApparent: +4.0
Absolute: +2.0
Spectral ClassA5V White Main Sequence Star
Optimum VisibilityApril / May (Usually visible from northern latitudes)
NotesForms an optical double, the Horse and Rider, with Mizar; Alcor is a binary star with a red dwarf companion

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