Achernar vs Regulus
| 属性 | Achernar | Regulus |
|---|---|---|
| 命名 | Alp Eri | 32Alp Leo |
| 星座 | N/A | Leo |
| 光谱类型 | Class B — B-type (Blue-White) | Class B — B-type (Blue-White) |
| 视星等 | +0.45 | +1.36 |
| 绝对星等 | -2.70 | -0.57 |
| 距离 | 139 ly | 79.3 ly |
| 质量 | N/A | N/A |
| 半径 | N/A | N/A |
| 温度 | N/A | N/A |
| 光度 | N/A | N/A |
主要差异
- ◆ Both are rapidly rotating hot stars that are noticeably oblate due to centrifugal force.
- ◆ Achernar's equatorial diameter is 56% larger than its polar diameter — the flattest bright star known.
- ◆ Achernar is a B-type star at ~14,500 K; Regulus is also B-type at ~12,460 K.
- ◆ Achernar is in Eridanus at 139 light-years; Regulus is in Leo at 79 light-years.
- ◆ Regulus sits almost exactly on the ecliptic and is frequently occulted by the Moon.