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Planetarium Activity

Turn off the daylight and horizon displays. Use the “Selection” button and click on “Find.” In the window, type in Mizar and then click “Find.” This will center the display on the bright star Mizar, in Ursa Major. Zoom in until the field of view is about 1 minute of arc. You will see that Mizar is actually a double star. Using the Angular Separation Tool, measure the angular separation of the two stars.

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