아크투루스 vs 폴룩스
| 속성 | 아크투루스 | 폴룩스 |
|---|---|---|
| 명칭 | 16Alp Boo | 78Bet Gem |
| 별자리 | N/A | Gemini |
| 분광형 | Class K — K-type (Orange) | Class K — K-type (Orange) |
| 겉보기 등급 | -0.05 | +1.16 |
| 절대 등급 | -0.31 | 1.08 |
| 거리 | 36.7 ly | 33.8 ly |
| 질량 | N/A | N/A |
| 반지름 | N/A | N/A |
| 온도 | N/A | N/A |
| 광도 | N/A | N/A |
주요 차이점
- ◆ Both are K-type giant stars, but Arcturus is in the northern hemisphere's highlight and Pollux is in Gemini.
- ◆ Arcturus is the brightest star in the northern sky at magnitude −0.05; Pollux is the nearest giant star at ~34 ly.
- ◆ Pollux hosts a confirmed exoplanet (Thestias); Arcturus has no known planetary companions.
- ◆ Arcturus has an unusually high proper motion suggesting an unusual galactic orbit.
- ◆ Arcturus is about 170 times more luminous than the Sun; Pollux is about 33 times more luminous.