81 Gem
81 Gem
81 Gem is a K-type (Orange) star located in the constellation Gemini. It carries the designation 81 Gem.
Located approximately 339.4 light-years from Earth, 81 Gem resides within the broader disk of our Milky Way galaxy.
81 Gem is classified as a spectral class K star (K-type (Orange)) on the Harvard spectral classification system.
With an apparent magnitude of +4.89, 81 Gem 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 red hue, which corresponds to a B-V color index of +1.425.
Đặc tính vật lý
| Phân Loại Quang Phổ | Class K — K-type (Orange) |
| Chỉ số màu (B−V) | 1,425 |
Quan sát
| Cấp Sao Biểu Kiến | +4.89 |
| Cấp Sao Tuyệt Đối | -0,20 |
| Khoảng Cách | 339 ly |
| Chòm Sao | Gemini |
Vị trí
| Xích kinh | 7h 46,12m |
| Xích vĩ | 18° 30,60′ |
Câu hỏi thường gặp
What type of star is 81 Gem?
81 Gem is a Class K — K-type (Orange) star.
How far is 81 Gem from Earth?
81 Gem is approximately 339.4 light-years from Earth.
Can you see 81 Gem with the naked eye?
With an apparent magnitude of 4.89, 81 Gem is visible to the naked eye.
What constellation is 81 Gem in?
81 Gem is located in the constellation Gemini.