アルキオネ
25Eta Tau
アルキオネ is a B-type (Blue-White) star located in the constellation Taurus. It carries the designation 25Eta Tau.
Located approximately 403.2 light-years from Earth, アルキオネ resides within the broader disk of our Milky Way galaxy.
アルキオネ is classified as a spectral class B star (B-type (Blue-White)) on the Harvard spectral classification system.
At an apparent magnitude of +2.85, アルキオネ 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 hue, which corresponds to a B-V color index of -0.086.
物理的特性
| スペクトル型 | Class B — B-type (Blue-White) |
| 色指数 (B−V) | -0.086 |
観測
| 見かけの等級 | +2.85 |
| 絶対等級 | -2.61 |
| 距離 | 403 ly |
| 星座 | Taurus |
位置
| 赤経 | 3h 47.48m |
| 赤緯 | 24° 6.31′ |
よくある質問
What type of star is アルキオネ?
アルキオネ is a Class B — B-type (Blue-White) star.
How far is アルキオネ from Earth?
アルキオネ is approximately 403.2 light-years from Earth.
Can you see アルキオネ with the naked eye?
With an apparent magnitude of 2.85, アルキオネ is visible to the naked eye.
What constellation is アルキオネ in?
アルキオネ is located in the constellation Taurus.