Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  The star Alcor (80UMa)  ·  The star Mizar (ζUMa)
Mizar and Alcor, Joe Gilker
Mizar and Alcor
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Mizar and Alcor

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Description

Mizar (Zeta Ursae Majoris, Zeta UMa, ζ Ursae Majoris, ζ UMa) in Arabic known as "سها" is a quadruple system of two binary stars in the constellation Ursa Major and is the second star from the end of the Big Dipper's handle. Its apparent magnitude is 2.23 and its spectral class is A1V. Mizar's name comes from the Arabic مئزر mīzar, meaning a waistband or girdle.

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Mizar and Alcor, Joe Gilker