Mizar
(redirected from 80 Ursae Majoris)

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Mizar

also ζ Ursae Majoris, a star located at a distance of 27 parsecs from the sun and having a visual magnitude of 2.0 and a luminosity 74 times the solar luminosity. Mizar is actually a system of three stars. Displacement of the spectral lines of the components of Mizar was first discovered in 1889; these lines arise as a consequence of the orbital motion of the separate components about a common center of gravity.

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Mizar (redirected from 80 Ursae Majoris)

Mizar
(redirected from 80 Ursae Majoris)