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Proper NameGomeisa
Bayer DesignationBeta Canis Minoris
Flamsteed Number3 Canis Minoris
HR (BSC)2845
ConstellationCanis Minor
Right Ascension7h 27m 9s
Declination+8° 17' 22"
Distance162 light years
50 parsecs
MagnitudeApparent: +2.9
Absolute: -0.6
Spectral ClassB8Ve blue main sequence star
Optimum VisibilityJanuary / February
NotesA rapidly rotating blue star, Gomeisa is a Be class star, possessing a disc of material extending out from the star itself for some 1.5 times Gomeisa's diameter. Gomeisa is also a pulsating variable star, showing marginal shifts in magnitude several times each day.

This blue variable lies a little over 160 light years from the Earth, in the constellation of Canis Minor, the Lesser Dog.

Illustration of Gomeisa

A view of Gomeisa, the second brightest star in Canis Minor, the Lesser Dog.

Location of Gomeisa

Gomeisa lies on the fringe of the Milky Way in the constellation of Canis Minor. Close by, the Sun's near neighbour Procyon can be seen.

Relative Galactic Position of Gomeisa

The galactic position and direction of Gomeisa relative to Earth's Sun. Note that, at this extreme scale, the two stars are effectively in the same place.


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