ポルックス (恒星)

78Bet Gem

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At 33.8 light-years, Pollux is the nearest of the bright orange stars and the closest first-magnitude star to host a known planet. It is Beta Geminorum, and despite the Beta label it outshines Castor to rank as the brightest star of the constellation Gemini. This K-type star carries a B–V colour index of 0.991, consistent with its orange colour, and appears at magnitude 1.16. Its absolute magnitude of 1.08 indicates an intrinsic brightness modestly above the Sun's. A northern declination of +28° places Pollux high in the winter sky, where it and neighbouring Castor mark the heads of the celestial twins.

物理的特性

スペクトル型 K Class K — K-type (Orange)
色指数 (B−V) 0.991

観測

見かけの等級 +1.16
絶対等級 1.08
距離 33.8 ly
星座 Gemini

位置

赤経 7h 45.32m
赤緯 28° 1.57′

Frequently Asked Questions

What type of star is ポルックス (恒星)?
ポルックス (恒星) is a Class K — K-type (Orange) star.
How far is ポルックス (恒星) from Earth?
ポルックス (恒星) is approximately 33.8 light-years from Earth.
Can you see ポルックス (恒星) with the naked eye?
With an apparent magnitude of 1.16, ポルックス (恒星) is visible to the naked eye.
What constellation is ポルックス (恒星) in?
ポルックス (恒星) is located in the constellation Gemini.