ラランド21185
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ラランド21185 is a M-type (Red) star located in the constellation Ursa Major.
At a distance of approximately 8.31 light-years, ラランド21185 is one of the Sun's closest stellar neighbors. Light that we observe from ラランド21185 today left the star roughly 8 years ago, making it a near neighbor in galactic terms.
ラランド21185 is classified as a spectral class M star (M-type (Red)) on the Harvard spectral classification system.
ラランド21185 has an apparent magnitude of +7.49, 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 +1.502.
物理的特性
| スペクトル型 | M Class M — M-type (Red) |
| 色指数 (B−V) | 1.502 |
観測
| 見かけの等級 | +7.49 |
| 絶対等級 | 10.46 |
| 距離 | 8.3 ly |
| 星座 | Ursa Major |
位置
| 赤経 | 11h 3.34m |
| 赤緯 | 35° 58.19′ |