アルゴル vs Mirfak
| 特性 | アルゴル | Mirfak |
|---|---|---|
| 名称 | 26Bet Per | 33Alp Per |
| 星座 | Perseus | Perseus |
| スペクトル型 | Class B — B-type (Blue-White) | Class F — F-type (Yellow-White) |
| 見かけの等級 | +2.09 | +1.79 |
| 絶対等級 | -0.11 | -4.17 |
| 距離 | 89.9 ly | 506 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 prominent stars in Perseus and are often observed together.
- ◆ Mirfak is a yellow-white supergiant and the brightest member of the Alpha Persei Cluster.
- ◆ Algol is the famous Demon Star — the prototype eclipsing binary variable.
- ◆ Algol varies in brightness every 2.87 days; Mirfak does not show significant variability.
- ◆ Mirfak is farther away at ~510 light-years; Algol is ~93 light-years from Earth.