ゲンマ
5Alp CrB
ゲンマ is a A-type (White) star. It carries the designation 5Alp CrB.
Located approximately 75.0 light-years from Earth, ゲンマ resides within the broader disk of our Milky Way galaxy.
ゲンマ is classified as a spectral class A star (A-type (White)) on the Harvard spectral classification system.
At an apparent magnitude of +2.22, ゲンマ is visible to the naked eye under reasonably clear skies. It may require dark-sky conditions to be seen comfortably in areas with significant light pollution. Observers will note its blue-white hue, which corresponds to a B-V color index of +0.032.
物理的特性
| スペクトル型 | Class A — A-type (White) |
| 色指数 (B−V) | 0.032 |
観測
| 見かけの等級 | +2.22 |
| 絶対等級 | 0.41 |
| 距離 | 75.0 ly |
位置
| 赤経 | 15h 34.69m |
| 赤緯 | 26° 42.88′ |
よくある質問
What type of star is ゲンマ?
ゲンマ is a Class A — A-type (White) star.
How far is ゲンマ from Earth?
ゲンマ is approximately 75.0 light-years from Earth.
Can you see ゲンマ with the naked eye?
With an apparent magnitude of 2.22, ゲンマ is visible to the naked eye.