Mizar

Mizar (ζ Ursae Majoris) is a white star in the constellation Ursa Major. With an apparent magnitude of 2.27 it is the 73rd-brightest star in the night sky, and it is about 83 light-years from Earth.

Finder chart showing where Mizar is in the constellation Ursa Major
Mizar (circled) in Ursa Major, with the surrounding constellations and bright stars.
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Facts

ConstellationUrsa Major
Designationζ Ursae Majoris (Zeta Ursae Majoris), HR 5054
Apparent magnitude2.27 (73rd brightest)
Spectral typeA1VpSrSi
Colorwhite (B−V 0.02)
Distanceabout 83 light-years
Right ascension13 h 23.9 min
Declination+54.93°
Best monthMay (at about 9 pm)

Sources: star positions, magnitudes and colors from the Yale Bright Star Catalogue; constellation boundaries and star names from the IAU; areas and distances from Wikidata; stick figures by M. van der Sluys. How the maps are made.

How to find Mizar

Mizar is in Ursa Major. From 40° N it never sets; it is highest in the north, about 75° up. From 35° S it reaches about 0° in the north. Nearby bright stars: Alioth (4° away), Alkaid (7° away) and Phecda (13° away).

Ursa Major constellation →

Other named stars in Ursa Major

AliothDubheAlkaidMerakPhecdaTania AustralisTalithaMegrezMuscidaTania BorealisAlula BorealisAlkaphrahTaiyangshouAlcorAlula Australis

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