HIP 21790
HIP 21790 is a B-type (Blue-White) star.
At a distance of roughly 2,146 light-years, HIP 21790 is a distant star lying deep within the Milky Way galaxy.
HIP 21790 is classified as a spectral class B star (B-type (Blue-White)) on the Harvard spectral classification system.
HIP 21790 has an apparent magnitude of +7.26, placing it beyond naked-eye visibility. A good pair of binoculars or a small telescope is required to observe this star. Observers will note its blue-white hue, which corresponds to a B-V color index of +0.125.
物理的特性
| スペクトル型 | Class B — B-type (Blue-White) |
| 色指数 (B−V) | 0.125 |
観測
| 見かけの等級 | +7.26 |
| 絶対等級 | -1.83 |
| 距離 | 2,146 ly |
位置
| 赤経 | 4h 40.83m |
| 赤緯 | 57° 52.78′ |
よくある質問
What type of star is HIP 21790?
HIP 21790 is a Class B — B-type (Blue-White) star.
How far is HIP 21790 from Earth?
HIP 21790 is approximately 2,145.8 light-years from Earth.
Can you see HIP 21790 with the naked eye?
With an apparent magnitude of 7.26, HIP 21790 is not visible to the naked eye.