7 Per
7 Per
7 Per is a G-type (Yellow) star located in the constellation Perseus. It carries the designation 7 Per.
Located approximately 819.5 light-years from Earth, 7 Per resides within the broader disk of our Milky Way galaxy.
7 Per is classified as a spectral class G star (G-type (Yellow)) on the Harvard spectral classification system.
With an apparent magnitude of +5.99, 7 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 orange hue, which corresponds to a B-V color index of +1.039.
物理特性
| 光谱类型 | Class G — G-type (Yellow) |
| 色指数 (B−V) | 1.039 |
观测
| 视星等 | +5.99 |
| 绝对星等 | -1.01 |
| 距离 | 819 ly |
| 星座 | Perseus |
位置
| 赤经 | 2h 18.08m |
| 赤纬 | 57° 30.98′ |
常见问题
What type of star is 7 Per?
7 Per is a Class G — G-type (Yellow) star.
How far is 7 Per from Earth?
7 Per is approximately 819.5 light-years from Earth.
Can you see 7 Per with the naked eye?
With an apparent magnitude of 5.99, 7 Per is visible to the naked eye.
What constellation is 7 Per in?
7 Per is located in the constellation Perseus.