アルタイル
53Alp Aql
アルタイル is a A-type (White) star located in the constellation Aquila. It carries the designation 53Alp Aql.
アルタイル lies approximately 16.7 light-years from Earth, placing it within the Sun's local stellar neighborhood. This relatively short cosmic distance means the light reaching us today departed the star only about 16 years ago.
アルタイル is classified as a spectral class A star (A-type (White)) on the Harvard spectral classification system.
アルタイル has an apparent magnitude of +0.76, 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-white hue, which corresponds to a B-V color index of +0.221.
物理的特性
| スペクトル型 | Class A — A-type (White) |
| 色指数 (B−V) | 0.221 |
観測
| 見かけの等級 | +0.76 |
| 絶対等級 | 2.21 |
| 距離 | 16.7 ly |
| 星座 | Aquila |
位置
| 赤経 | 19h 50.78m |
| 赤緯 | 8° 52.10′ |
よくある質問
What type of star is アルタイル?
アルタイル is a Class A — A-type (White) star.
How far is アルタイル from Earth?
アルタイル is approximately 16.7 light-years from Earth.
Can you see アルタイル with the naked eye?
With an apparent magnitude of 0.76, アルタイル is visible to the naked eye.
What constellation is アルタイル in?
アルタイル is located in the constellation Aquila.