Dubhe
50Alp UMa
Dubhe is a F-type (Yellow-White) star located in the constellation Ursa Major. It carries the designation 50Alp UMa.
Located approximately 122.9 light-years from Earth, Dubhe resides within the broader disk of our Milky Way galaxy.
Dubhe is classified as a spectral class F star (F-type (Yellow-White)) on the Harvard spectral classification system.
Dubhe has an apparent magnitude of +1.81, making it a bright and prominent star that is readily visible to the naked eye. It is one of the more conspicuous stars in its region of the sky. Observers will note its orange hue, which corresponds to a B-V color index of +1.061.
物理的特性
| スペクトル型 | Class F — F-type (Yellow-White) |
| 色指数 (B−V) | 1.061 |
観測
| 見かけの等級 | +1.81 |
| 絶対等級 | -1.07 |
| 距離 | 123 ly |
| 星座 | Ursa Major |
位置
| 赤経 | 11h 3.73m |
| 赤緯 | 61° 45.06′ |
よくある質問
What type of star is Dubhe?
Dubhe is a Class F — F-type (Yellow-White) star.
How far is Dubhe from Earth?
Dubhe is approximately 122.9 light-years from Earth.
Can you see Dubhe with the naked eye?
With an apparent magnitude of 1.81, Dubhe is visible to the naked eye.
What constellation is Dubhe in?
Dubhe is located in the constellation Ursa Major.