The Royal Astronomical Society of Canada

The Royal Astronomical Society of Canada

Alcor Mizar Double

Alcor Mizar Double

When looking at the Big Dipper, the second star in from the end of the handle appears to have a dim star very close to it. In ancient times, the Romans would test a night watchman's night vision by seeing if he could see this dim star.

When you look at this pair of stars through a telescope, you'll see that the brighter of the two, Mizar (Left) is actually a double star on its own.


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Alcor Mizar Double
Image posted: Feb 20, 2005

Categories:   Multiple Stars  

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