Wednesday, November 10, 2010

83 Leonis AB

Star type
g A: G6-K0 IV
g B: K2 IV-V

Distance from Earth
g 57.6 ly

Star Service No.
g NA

g A: A subgiant, it has ceased fusing hydrogen in its core and started to evolve towards red gianthood.
g B: 4.49 billion years

Radius/Mass/Temp (xSol)
g A: 190%; 95%; 5509 K
g B: 81%; 88%; 4875 K

Brightness (xSol)
g A: 69%
g B: 25%

g A: 120%
g B: 36%

Comparison to Sol
g A: NA
g B: NA

Picture of star
g A: NA
g B: NA

Star system features
g There is yet another, magnitude 14.4 component listed in the Washington Double Star Catalog. However, this star is moving into a different direction and is therefore not a true member of the 83 Leonis system.

Known planets
g A: NA
g B: Bb, with a minimum mass less than half of the mass of Saturn, orbits in a circular but a very close orbit around the star, completing one orbit in about 17 days.

Habitable zones
g A: NA
g B: NA

Orbital map
g A: Two stars are separated by at least 515 astronomical units away from each other
g B: NA

View from stars
g NA

Nearby stars
(Star systems with 10 light years)
g NA

Map locating star system
g NA

Location in Earth sky
g In constellation Leo; not visible to the unaided eye, but easily visible with small binoculars

Other names
g A: 83 Leo A; HR 4414; HIP 55846; HD 99491; BD: +03° 2502; YPC 2648.00; LHS 2407; Gl 429 A
g B: 83 Leo B; HIP 55848; HD 99492; LHS 2408; Gl 429 B

Sci-fi mentions
g A: NA
g B: NA

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