HIP 81721
HIP 81721 is a K-type (Orange) star located in the constellation Hercules.
At a distance of roughly 1,310 light-years, HIP 81721 is a distant star lying deep within the Milky Way galaxy.
HIP 81721 is classified as a spectral class K star (K-type (Orange)) on the Harvard spectral classification system.
HIP 81721 has an apparent magnitude of +7.34, placing it beyond naked-eye visibility. A good pair of binoculars or a small telescope is required to observe this star. Observers will note its red hue, which corresponds to a B-V color index of +1.462.
Đặc tính vật lý
| Phân Loại Quang Phổ | Class K — K-type (Orange) |
| Chỉ số màu (B−V) | 1,462 |
Quan sát
| Cấp Sao Biểu Kiến | +7.34 |
| Cấp Sao Tuyệt Đối | -0,68 |
| Khoảng Cách | 1,310 ly |
| Chòm Sao | Hercules |
Vị trí
| Xích kinh | 16h 41,55m |
| Xích vĩ | 18° 55,29′ |
Câu hỏi thường gặp
What type of star is HIP 81721?
HIP 81721 is a Class K — K-type (Orange) star.
How far is HIP 81721 from Earth?
HIP 81721 is approximately 1,309.9 light-years from Earth.
Can you see HIP 81721 with the naked eye?
With an apparent magnitude of 7.34, HIP 81721 is not visible to the naked eye.
What constellation is HIP 81721 in?
HIP 81721 is located in the constellation Hercules.