HIP 1821
HIP 1821 is a M-type (Red) star.
At a distance of roughly 1,102 light-years, HIP 1821 is a distant star lying deep within the Milky Way galaxy.
HIP 1821 is classified as a spectral class M star (M-type (Red)) on the Harvard spectral classification system.
HIP 1821 has an apparent magnitude of +6.43, 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 +1.595.
物理的特性
| スペクトル型 | M Class M — M-type (Red) |
| 色指数 (B−V) | 1.595 |
観測
| 見かけの等級 | +6.43 |
| 絶対等級 | -1.21 |
| 距離 | 1,102 ly |
位置
| 赤経 | 0h 23.07m |
| 赤緯 | -15° 56.55′ |
Frequently Asked Questions
What type of star is HIP 1821?
HIP 1821 is a Class M — M-type (Red) star.
How far is HIP 1821 from Earth?
HIP 1821 is approximately 1,101.9 light-years from Earth.
Can you see HIP 1821 with the naked eye?
With an apparent magnitude of 6.43, HIP 1821 is not visible to the naked eye.