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Segin

Epsilon Cassiopeiae, 45 Cassiopeiae

Proper NameSegin
Bayer DesignationEpsilon Cassiopeiae
Flamsteed Number45 Cassiopeiae
BSC542
HD11415
ConstellationCassiopeia
Right Ascension1h 54m 24s
Declination+63° 40' 12"
Distance459 light years
141 parsecs
MagnitudeApparent: +3.3
Absolute: -2.2
Spectral ClassB3IV:p(shell) Blue Subgiant
Optimum VisibilityOctober / November (Usually visible from northern latitudes)

The northernmost of the five stars that make up the famous 'W' of Cassiopeia, Segin is also the faintest, and the only one below second magnitude. It is a variable blue star some 459 light years from Earth.

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