Beta Ursae Minoris

Location of β Ursae Minoris (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Ursa Minor
Right ascension 14
Declination +74° 09′ 19.8142″
Apparent magnitude (V) 2.08
Characteristics
Spectral type K4 III
U−B color index +1.78
B−V color index +1.47
Astrometry
Radial velocity (Rv) +16.96 km/s
Proper motion (μ) RA: -32.61 mas/yr
Parallax (π) 24.91 ± 0.12mas
Distance 130.9 ± 0.6 ly
(40.1 ± 0.2 pc)
Details
Mass 2.2 ± 0.3M
Radius 42.06 ± 0.91R
Luminosity 390 ± 25L
Surface gravity (log g) 1.83
Temperature 4,030K
Metallicity [Fe/H] –0.29dex
Rotational velocity (v sin i) 8 km/s
Other designations
Kochab, Kocab, Kochah, 7 Ursae Minoris, Al Kaukab al Shamaliyy, BD +74 595, FK5 550, GCTP 3373.00, HD 131873, HIP 72607, HR 5563, SAO 8102.

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Kochab, which is released under the Creative Commons Attribution-Share-Alike License 3.0