2 Per
2 Per
2 Per is a B-type (Blue-White) star located in the constellation Perseus. It carries the designation 2 Per.
Located approximately 482.5 light-years from Earth, 2 Per resides within the broader disk of our Milky Way galaxy.
2 Per is classified as a spectral class B star (B-type (Blue-White)) on the Harvard spectral classification system.
With an apparent magnitude of +5.70, 2 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 -0.067.
Đặc tính vật lý
| Phân Loại Quang Phổ | Class B — B-type (Blue-White) |
| Chỉ số màu (B−V) | -0,067 |
Quan sát
| Cấp Sao Biểu Kiến | +5.70 |
| Cấp Sao Tuyệt Đối | -0,15 |
| Khoảng Cách | 482 ly |
| Chòm Sao | Perseus |
Vị trí
| Xích kinh | 1h 52,16m |
| Xích vĩ | 50° 47,57′ |
Câu hỏi thường gặp
What type of star is 2 Per?
2 Per is a Class B — B-type (Blue-White) star.
How far is 2 Per from Earth?
2 Per is approximately 482.5 light-years from Earth.
Can you see 2 Per with the naked eye?
With an apparent magnitude of 5.70, 2 Per is visible to the naked eye.
What constellation is 2 Per in?
2 Per is located in the constellation Perseus.