Gienah
4Gam Crv
Gienah is a B-type (Blue-White) star. It carries the designation 4Gam Crv.
Located approximately 153.6 light-years from Earth, Gienah resides within the broader disk of our Milky Way galaxy.
Gienah is classified as a spectral class B star (B-type (Blue-White)) on the Harvard spectral classification system.
At an apparent magnitude of +2.58, Gienah 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 -0.107.
物理特性
| 光谱类型 | Class B — B-type (Blue-White) |
| 色指数 (B−V) | -0.107 |
观测
| 视星等 | +2.58 |
| 绝对星等 | -0.78 |
| 距离 | 154 ly |
位置
| 赤经 | 12h 15.81m |
| 赤纬 | -17° 32.52′ |
常见问题
What type of star is Gienah?
Gienah is a Class B — B-type (Blue-White) star.
How far is Gienah from Earth?
Gienah is approximately 153.6 light-years from Earth.
Can you see Gienah with the naked eye?
With an apparent magnitude of 2.58, Gienah is visible to the naked eye.