目前位置
| 屬性 | 數值 |
|---|---|
| Right Ascension (J2000) | 11h53m50s |
| Declination (J2000) | +53°41'41" |
| Altitude | 5.77° |
| Azimuth | 346.24° |
| Hour Angle | 10h27m30s |
| Constellation | Ursa Major |
| Visibility | naked_eye |
物理特性
| 屬性 | 數值 |
|---|---|
| Visual Magnitude | 2.41 |
| Spectral Class | A1V |
| Color Index (B-V) | -0.02 |
| Distance | 79.7 light-years |
| Parallax | 38.99 mas |
| Proper Motion (RA) | 107.76 mas/yr |
| Proper Motion (Dec) | 11.16 mas/yr |
| Radial Velocity | -12.0 km/s |
星表編號
| 目錄 | 編號 |
|---|---|
| Hipparcos (HIP) | 58001 |
| Bright Star Catalogue (HR) | 4295 |
| Henry Draper (HD) | 95418 |
| SAO | 43268 |
| Bayer Designation | β UMa |
| Flamsteed Designation | 48 UMa |
升起、落下與過中天
| 事件 | 時間 / 數值 |
|---|---|
| Status | Circumpolar (always above horizon) |
| Transit Time | 22:42 (altitude: 76.4°) |