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Alpha Carinae

Proper NamesCanopus
Bayer DesignationAlpha Carinae
Flamsteed NumberNone
HR (BSC)2326
Right Ascension6h 23m 57s
Declination-52° 41' 44"
Distance309 light years
95 parsecs
MagnitudeApparent: -0.6
Absolute: -5.5
Spectral ClassF0 Bright Yellow Supergiant
Optimum VisibilityJanuary (Usually visible from southern latitudes)
NotesThe most luminous star within the Solar System's local area of the Galaxy, Canopus generates more than 13,000 times as much light energy as the Sun. It is yellow-white in colour (and indeed some sources prefer to classify it as an A-type white star rather than F-type bright yellow).

Despite its distance from the Earth (more than 300 light years), the supergiant Canopus shines so strongly that it is still the second brightest star in the sky - only Sirius in Canis Major is brighter.


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