リゲル
19Bet Ori
リゲル is a B-type (Blue-White) star located in the constellation Orion. It carries the designation 19Bet Ori.
Located approximately 862.9 light-years from Earth, リゲル resides within the broader disk of our Milky Way galaxy.
リゲル is classified as a spectral class B star (B-type (Blue-White)) on the Harvard spectral classification system.
リゲル has an apparent magnitude of +0.18, making it a bright and prominent star that is readily visible to the naked eye. It is one of the more conspicuous stars in its region of the sky. Observers will note its blue hue, which corresponds to a B-V color index of -0.030.
物理的特性
| スペクトル型 | Class B — B-type (Blue-White) |
| 色指数 (B−V) | -0.030 |
観測
| 見かけの等級 | +0.18 |
| 絶対等級 | -6.93 |
| 距離 | 863 ly |
| 星座 | Orion |
位置
| 赤経 | 5h 14.54m |
| 赤緯 | -8° 12.10′ |
Related Chemistry
Explore the chemical elements connected to リゲル on our sister site ChemFYI.
Hydrogen Balmer series visible in B-type supergiants
Neutral helium lines are a defining feature of B-type spectra
CNO-cycle product enriched in blue supergiant atmospheres
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