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Algieba

Juba, Gamma1,2 Leonis, 41 Leonis

Proper NamesAlgieba, Juba
Bayer DesignationGamma1,2 Leonis
Flamsteed Number41 Leonis
HR (BSC)4057 (A), 4058 (B)
HD89484 (A), 89485 (B)
ConstellationLeo
Right Ascension10h 20m 51s
Declination+19° 45' 31"
Distance130 light years
40 parsecs
MagnitudeApparent: +2.2 (A), +3.5 (B)
Absolute: -0.8 (A), +0.5 (B)
Spectral ClassK1III Orange Giant (A), G7III Yellow Giant (B)
Optimum VisibilityMarch
NotesThis pair of giant stars circle one another over a period of some 510 years. The orange star (which is about twice the size of its yellow companion) has at least one planet in orbit, a gas giant designated Algieba b or Gamma 1 Leonis b.

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