아크룩스 vs 스피카
| 속성 | 아크룩스 | 스피카 |
|---|---|---|
| 명칭 | Alp1Cru | 67Alp Vir |
| 별자리 | Crux | Virgo |
| 분광형 | Class B — B-type (Blue-White) | Class B — B-type (Blue-White) |
| 겉보기 등급 | +0.77 | +0.98 |
| 절대 등급 | -4.20 | -3.44 |
| 거리 | 322 ly | 250 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 brightest stars in the southern sky and both are hot B-type systems.
- ◆ Acrux is the brightest star in the Southern Cross; Spica is the brightest in Virgo.
- ◆ Spica is a tidally distorted spectroscopic binary with a 4-day orbital period.
- ◆ Acrux has components resolvable through a small telescope; Spica's components cannot be resolved visually.
- ◆ Acrux appears on the national flags of Australia, New Zealand, Papua New Guinea, Samoa, and Brazil.