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Pollux

Pollux is together with Castor one of the two twin stars. The yellow-orange subgiant will grow to its full size, a procedure that will take many thousand years.

Pollux has a planet with three times the mass of Jupiter, which is orbiting its star every 590 days.

Constellation: Gemini
Distance: 33.72 light-years
Spectral class: K0
Visual magnitude: 1.16
Luminosity: 31.95 * Sun
Mass: 2.8 * Sun
Diameter: 8.3 * Sun
Radial velocity: 3.6 km/sec

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    Pollux
Photo: ESO Online Digitized Sky Survey

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