30 Per
30 Per
30 Per is a B-type (Blue-White) star located in the constellation Perseus. It carries the designation 30 Per.
Located approximately 731.3 light-years from Earth, 30 Per resides within the broader disk of our Milky Way galaxy.
30 Per is classified as a spectral class B star (B-type (Blue-White)) on the Harvard spectral classification system.
With an apparent magnitude of +5.49, 30 Per 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 -0.060.
物理的特性
| スペクトル型 | B Class B — B-type (Blue-White) |
| 色指数 (B−V) | -0.060 |
観測
| 見かけの等級 | +5.49 |
| 絶対等級 | -1.26 |
| 距離 | 731 ly |
| 星座 | Perseus |
位置
| 赤経 | 3h 17.79m |
| 赤緯 | 44° 1.50′ |
Frequently Asked Questions
What type of star is 30 Per?
30 Per is a Class B — B-type (Blue-White) star.
How far is 30 Per from Earth?
30 Per is approximately 731.3 light-years from Earth.
Can you see 30 Per with the naked eye?
With an apparent magnitude of 5.49, 30 Per is visible to the naked eye.
What constellation is 30 Per in?
30 Per is located in the constellation Perseus.