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Explore the Night Sky

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Move your mouse over this star chart and click on a constellation or a blinking star to learn more. Can you find 25 constellations?

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What is a Planisphere?

A planisphere consists of a star chart and a viewer. Construct yours now by following the instructions on this page.

Download printable Planisphere


For more information on constellations read Ken Tapping's weekly articles!