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Hadar

Agena, Beta Centauri

Blue Star in Centaurus

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Proper NamesHadar, Agena
Bayer DesignationBeta Centauri
Flamsteed NumberNone
HR (BSC)5267
HD122451
ConstellationCentaurus
Right Ascension14h 3m 49s
Declination-60° 22' 23"
Distance392 light years
120 parsecs
MagnitudeApparent: +0.6
Absolute: -4.8
Spectral ClassB1III Blue Giant
Optimum VisibilityMay (Usually visible from southern latitudes)
NotesTogether with Alpha Centauri, its near neighbour in the sky, Hadar forms the Southern Pointers, which can be used to locate the constellation Crux as well as the Southern Celestial Pole.

This fairly bright star appears to lie close to Alpha Centauri (or Rigil Kentaurus) in the sky. In fact, though, it is more than a hundred times further away from Earth than its better-known neighbour.

Imagery provided by Aladin sky atlas

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