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Gliese 229

A pair of a red dwarf which is a flare star and a brown dwarf.

Constellation: Lepus
Age: 3 billion years
Distance: 18.8 light-years
Radial velocity: 5.2 km/sec
Space between Gliese 229 A and B: 44 AU

Gliese 229 A

Spectral class: M1
Visual magnitude: 8.15
Luminosity: 0.016 * Sun
Mass: 0.46 * Sun
Diameter: 0.527 * Sun
 

Gliese 229 B



Luminosity: 0.000006 * Sun
Mass: 0.05 * Sun (45 * Jupiter)
Diameter: 0.1027 * Sun (1 * Jupiter)

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    Gliese 229
The red dwarf and right to it the tiny brown dwarf.
Photo: Nasa, Hubble Telescope

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