4Pi 2UMa
4Pi 2UMa
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4Pi 2UMa is a K-type (Orange) star located in the constellation Ursa Major. It carries the designation 4Pi 2UMa.
Located approximately 256.0 light-years from Earth, 4Pi 2UMa resides within the broader disk of our Milky Way galaxy.
4Pi 2UMa is classified as a spectral class K star (K-type (Orange)) on the Harvard spectral classification system.
With an apparent magnitude of +4.59, 4Pi 2UMa 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 +1.179.
物理特性
| 光谱类型 | K Class K — K-type (Orange) |
| 色指数 (B−V) | 1.179 |
观测
| 视星等 | +4.59 |
| 绝对星等 | 0.12 |
| 距离 | 256 ly |
| 星座 | Ursa Major |
位置
| 赤经 | 8h 40.21m |
| 赤纬 | 64° 19.68′ |