アクルックス vs スピカ
| 特性 | アクルックス | スピカ |
|---|---|---|
| 名称 | Alp1Cru | 67Alp Vir |
| 星座 | Crux | Virgo |
| スペクトル型 | Class B — B-type (Blue-White) | Class B — B-type (Blue-White) |
| 見かけの等級 | +0.77 | +0.98 |
| 絶対等級 | -4.20 | -3.44 |
| 距離 | 322 ly | 250 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 |
主な違い
- ◆ 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.