11 Ursae Minoris
Location of 11 Ursae Minoris (invisible beside γ Ursae Minoris at this scale) | |
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Ursa Minor |
| Right ascension | 15h 17m 05.88946s |
| Declination | +71° 49′ 26.0473″ |
| Apparent magnitude (V) | 5.15 |
| Characteristics | |
| Spectral type | K4 III |
| Apparent magnitude (B) | 6.664 |
| Apparent magnitude (J) | 2.657 |
| Apparent magnitude (H) | 1.931±0.192 |
| Apparent magnitude (K) | 1.701±0.198 |
| B−V color index | 1.514±0.004 |
| Astrometry | |
| Radial velocity (Rv) | −17.80±0.12 km/s |
| Proper motion (μ) | RA: +4.073 mas/yr Dec.: +9.477 mas/yr |
| Parallax (π) | 7.9260±0.1249 mas |
| Distance | 412 ± 6 ly (126 ± 2 pc) |
| Absolute magnitude (MV) | −0.37 |
| Details | |
| Mass | 2.60+0.48 −0.44 M☉ |
| Radius | 29.14±0.45 R☉ |
| Luminosity | 250±6 L☉ |
| Habitable zone inner limit | 15.63±0.57 AU |
| Habitable zone outer limit | 30.65±1.10 AU |
| Surface gravity (log g) | 1.78±0.04 cgs |
| Temperature | 4,253±25 K |
| Metallicity | −0.02±0.05 |
| Age | 639+507 −278 Myr |
| Other designations | |
| Pherkad Minor, 11 UMi, BD+72°678, HD 136726, HIP 74793, HR 5714, SAO 8207, PPM 8870, GCRV 8864 | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
11 Ursae Minoris is a single star located approximately 410 light-years away in the northern circumpolar constellation of Ursa Minor. The star is visible to the naked eye as a faint, orange-hued star with an apparent visual magnitude of 5.15. It is moving closer to the Earth with a heliocentric radial velocity of −17.8 km/s.