HIP 21499
HIP 21499 is a M-type (Red) star.
HIP 21499 is an extraordinarily remote star, situated approximately 326,156 light-years from Earth.
HIP 21499 is classified as a spectral class M star (M-type (Red)) on the Harvard spectral classification system.
HIP 21499 has an apparent magnitude of +9.34, 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 red hue, which corresponds to a B-V color index of +1.579.
物理的特性
| スペクトル型 | Class M — M-type (Red) |
| 色指数 (B−V) | 1.579 |
観測
| 見かけの等級 | +9.34 |
| 絶対等級 | -10.66 |
| 距離 | 326,156 ly |
位置
| 赤経 | 4h 37.04m |
| 赤緯 | 82° 41.41′ |
よくある質問
What type of star is HIP 21499?
HIP 21499 is a Class M — M-type (Red) star.
How far is HIP 21499 from Earth?
HIP 21499 is approximately 326,156.0 light-years from Earth.
Can you see HIP 21499 with the naked eye?
With an apparent magnitude of 9.34, HIP 21499 is not visible to the naked eye.