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Groombridge 34

A big and a small red dwarf with large distance from another.

Constellation: Andromeda
Distance: 11.64 light-years
Radial velocity: 12 km/sec
Orbit period of Groombridge 34 A and B: 2600 years

Groombridge 34 A

Spectral class: M1.5n
Visual magnitude: 8.09
Luminosity: 0.00644 * Sun
Mass: 0.414 * Sun
Diameter: 0.383 * Sun
 

Groombridge 34 B

Spectral class: M3.5
Visual magnitude: 11.06
Luminosity: 0.000418 * Sun
Mass: 0.163 * Sun
Diameter: 0.19 * Sun

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Photo: ESO Online Digitized Sky Survey
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