11 Ursae Minoris
| Observation data Epoch J2000.0 Equinox J2000.0 |
|
|---|---|
| Constellation | Ursa Minor |
| Right ascension | 15h 17m 05.89s |
| Declination | +71° 49′ 26.0″ |
| Apparent magnitude (V) | 5.024 |
| Characteristics | |
| Spectral type | K4 III |
| Apparent magnitude (B) | 6.415 |
| Apparent magnitude (J) | 2.876 |
| Apparent magnitude (H) | 2.091 |
| Apparent magnitude (K) | 1.939 |
| B−V color index | 1.391 |
| Astrometry | |
| Radial velocity (Rv) | –17.87 km/s |
| Proper motion (μ) |
RA: 3.97±0.23 mas/yr Dec.: 9.65±0.21 mas/yr |
| Parallax (π) | 8.19 ± 0.19mas |
| Distance | 398 ± 9 ly (122 ± 3 pc) |
| Absolute magnitude (MV) | –0.37 |
| Details | |
| Mass | 2.04±0.20 M☉ |
| Radius |
28.20+0.71 −0.73 R☉ |
| Luminosity | 258.8±17.7 L☉ |
| Surface gravity (log g) | 1.60 cgs |
| Temperature | 4358±59 K |
| Metallicity | 0.04 ± 0.04 |
| Age | 1.21±0.33 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
| Extrasolar Planets Encyclopaedia |
data |
11 Ursae Minoris (11 UMi) is the Flamsteed designation of a 5th magnitude K-type giant star located approximately 398 light years away in the constellation Ursa Minor. This star is twice as massive, 28 times bigger, and 258 times more luminous than the Sun.
11 Ursae minoris is sometimes named Pherkard or Pherkad Minor, the later name to distinguish it from Pherkad (Major) which is γ Ursae minoris. It has also been designated as γ1 Ursae minoris, in which case the brighter Pherkad is called γ2 Ursae minoris, but these names are rarely used.
11 Ursae minoris has a detected planet discovered in August 2009.
Coordinates: 
15h 17m 05.8886s, +71° 49′ 26.044″
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