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Proper NameNone
Bayer DesignationOmega Canis Majoris
Flamsteed Number28 Canis Majoris
HR (BSC)2749
ConstellationCanis Major
Right Ascension7h 14m 49s
Declination-26° 46' 22"
Distance911 light years
279 parsecs
MagnitudeApparent: +4.03
Absolute: -3.20
Spectral ClassB2IV-Ve blue subgiant
Optimum VisibilityJanuary
NotesOmega Canis Majoris is a blue star some ten times the mass and the diameter of the Sun, surrounded by a circumstellar disc. It is a variable of the Gamma Cassiopeiae type, showing changes in brightness that follow a complex pattern and suggest that multiple forces are at work within the star.

Imagery provided by Aladin sky atlas


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