20 Per
20 Per
20 Per is a F-type (Yellow-White) star located in the constellation Perseus. It carries the designation 20 Per.
Located approximately 230.5 light-years from Earth, 20 Per resides within the broader disk of our Milky Way galaxy.
20 Per is classified as a spectral class F star (F-type (Yellow-White)) on the Harvard spectral classification system.
With an apparent magnitude of +5.34, 20 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 white hue, which corresponds to a B-V color index of +0.423.
物理特性
| 光谱类型 | F Class F — F-type (Yellow-White) |
| 色指数 (B−V) | 0.423 |
观测
| 视星等 | +5.34 |
| 绝对星等 | 1.09 |
| 距离 | 230 ly |
| 星座 | Perseus |
位置
| 赤经 | 2h 53.71m |
| 赤纬 | 38° 20.25′ |
Frequently Asked Questions
What type of star is 20 Per?
20 Per is a Class F — F-type (Yellow-White) star.
How far is 20 Per from Earth?
20 Per is approximately 230.5 light-years from Earth.
Can you see 20 Per with the naked eye?
With an apparent magnitude of 5.34, 20 Per is visible to the naked eye.
What constellation is 20 Per in?
20 Per is located in the constellation Perseus.