21The Crt
21The Crt
21The Crt is a B-type (Blue-White) star. It carries the designation 21The Crt.
Located approximately 280.4 light-years from Earth, 21The Crt resides within the broader disk of our Milky Way galaxy.
21The Crt is classified as a spectral class B star (B-type (Blue-White)) on the Harvard spectral classification system.
With an apparent magnitude of +4.70, 21The Crt sits near the limit of naked-eye visibility. It can be glimpsed without optical aid under dark skies, but binoculars will make observation much easier. Observers will note its blue hue, which corresponds to a B-V color index of -0.073.
物理的特性
| スペクトル型 | B Class B — B-type (Blue-White) |
| 色指数 (B−V) | -0.073 |
観測
| 見かけの等級 | +4.70 |
| 絶対等級 | 0.03 |
| 距離 | 280 ly |
位置
| 赤経 | 11h 36.68m |
| 赤緯 | -9° 48.13′ |
Frequently Asked Questions
What type of star is 21The Crt?
21The Crt is a Class B — B-type (Blue-White) star.
How far is 21The Crt from Earth?
21The Crt is approximately 280.4 light-years from Earth.
Can you see 21The Crt with the naked eye?
With an apparent magnitude of 4.70, 21The Crt is visible to the naked eye.