바너드별 vs Rigil Kentaurus
| 속성 | 바너드별 | Rigil Kentaurus |
|---|---|---|
| 명칭 | N/A | Alp1Cen |
| 별자리 | N/A | Centaurus |
| 분광형 | N/A | Class G — G-type (Yellow) |
| 겉보기 등급 | +9.54 | -0.01 |
| 절대 등급 | 13.24 | 4.38 |
| 거리 | 6.0 ly | 4.3 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 among the very closest stars to the Sun, though radically different in character.
- ◆ Rigil Kentaurus (Alpha Cen A) is a G-type solar twin at 4.37 ly; Barnard's Star is an M-type red dwarf at 5.96 ly.
- ◆ Barnard's Star has the largest proper motion in the sky (10.3 arcsec/yr); Rigil Kentaurus also has significant proper motion.
- ◆ Rigil Kentaurus is far brighter and more massive than Barnard's Star.
- ◆ Barnard's Star is the second-closest star system; Alpha Centauri (including Proxima) is the closest.