Posició actual
| Propietat | Valor |
|---|---|
| Right Ascension (J2000) | 02h31m53s |
| Declination (J2000) | +89°15'50" |
| Altitude | 40.08° |
| Azimuth | 0.79° |
| Hour Angle | -4h30m17s |
| Constellation | Ursa Minor |
| Visibility | naked_eye |
Propietats físiques
| Propietat | Valor |
|---|---|
| Visual Magnitude | 1.97 |
| Spectral Class | F8Ib |
| Color Index (B-V) | 0.60 |
| Distance | 433.0 light-years |
| Parallax | 7.56 mas |
| Proper Motion (RA) | 44.22 mas/yr |
| Proper Motion (Dec) | -11.74 mas/yr |
| Radial Velocity | -17.0 km/s |
Designacions de catàleg
| Catàleg | Designació |
|---|---|
| Hipparcos (HIP) | 11767 |
| Bright Star Catalogue (HR) | 424 |
| Henry Draper (HD) | 8890 |
| SAO | 308 |
| Bayer Designation | α UMi |
| Flamsteed Designation | 1 UMi |
Sortida, posta i trànsit
| Esdeveniment | Hora / Valor |
|---|---|
| Status | Circumpolar (always above horizon) |
| Transit Time | 13:52 (altitude: 40.5°) |