Castor vs ポルックス (恒星)

Property Castor ポルックス (恒星)
名称 66Alp Gem 78Bet Gem
星座 Gemini Gemini
スペクトル型 Class A — A-type (White) Class K — K-type (Orange)
見かけの等級 +1.58 +1.16
絶対等級 0.62 1.08
距離 50.9 ly 33.8 ly
質量 N/A N/A
半径 N/A N/A
温度 N/A N/A
光度 N/A N/A

Key Differences

  • ◆ Both are the 'twin' stars in Gemini and are frequently compared as a pair.
  • ◆ Despite being Alpha Geminorum, Castor is actually dimmer than Beta Geminorum (Pollux).
  • ◆ Pollux is a K-type giant; Castor is an A-type main-sequence star.
  • ◆ Castor is a remarkable sextuple system (6 stars in 3 binary pairs); Pollux is a single star with an exoplanet.
  • ◆ Pollux's exoplanet (Thestias) made it the first giant star confirmed to host a planet.

Related Comparisons

アークトゥルス vs ポルックス (恒星) カペラ (恒星) vs ポルックス (恒星)
← All Comparisons