Eta Ursae Minoris

η Ursae Minoris
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Ursa Minor
Right ascension 16h 17m 30.3s
Declination +75° 45' 19"
Apparent magnitude (V) +4.95
Distance 97.3 ± 1.4 ly
(29.8 ± 0.4 pc)
Spectral type F5V
Other designations
21 Ursae Minoris, NN 3950, HR 6116, HD 148048, BD+76 596, FK5 612, HIP 79822, SAO 8470, GC 21999, CCDM 16176+7545

Eta Ursae Minoris (η UMi, η Ursae Minoris) is a star in the constellation Ursa Minor. It has the traditional names Anwar al Farkadain and Alasco. The first is from the Arabic أنور الفرقدين ’anwar al-farqadayn "the brighter of the two calves", as opposed to Ahfa al Farkadain (ζ UMi) "the dimmer of the two calves"; these names were originally applied to Kochab, and Pherkad, respectively, the other two stars in the rectangle of Ursa Minor.

Eta Ursae Minoris is a yellow-white F-type main sequence dwarf with an apparent magnitude of +4.95, making it visible to the naked eye. It is approximately 97.3 light years from Earth.