139 Tau
139 Tau
139 Tau is a B-type (Blue-White) star located in the constellation Taurus. It carries the designation 139 Tau.
At a distance of roughly 1,553 light-years, 139 Tau is a distant star lying deep within the Milky Way galaxy.
139 Tau is classified as a spectral class B star (B-type (Blue-White)) on the Harvard spectral classification system.
With an apparent magnitude of +4.81, 139 Tau 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 -0.088.
Đặc tính vật lý
| Phân Loại Quang Phổ | B Class B — B-type (Blue-White) |
| Chỉ số màu (B−V) | -0,088 |
Quan sát
| Cấp Sao Biểu Kiến | +4.81 |
| Cấp Sao Tuyệt Đối | -3,58 |
| Khoảng Cách | 1,553 ly |
| Chòm Sao | Taurus |
Vị trí
| Xích kinh | 5h 57,99m |
| Xích vĩ | 25° 57,23′ |
Frequently Asked Questions
What type of star is 139 Tau?
139 Tau is a Class B — B-type (Blue-White) star.
How far is 139 Tau from Earth?
139 Tau is approximately 1,553.1 light-years from Earth.
Can you see 139 Tau with the naked eye?
With an apparent magnitude of 4.81, 139 Tau is visible to the naked eye.
What constellation is 139 Tau in?
139 Tau is located in the constellation Taurus.