"How to Look Back in Time Using the Most Famous Star Pattern of Them All"

Scheduled air date: 2002 Apr 01-07

The stars of the famous "Big Dipper" asterism—found in the constellation Ursa Major—are about 80 light-years away, although a couple of them (Dubhe and Alkaid) are over 100 light years away.  Because of this, the light that we see from them today actually left the stars 80 or more years ago. 

If you wish to view illustrations for other episodes, please see our Star Gazer Illustrated directory.

Illustrations on this page were created using TheSky Astronomy Software, an advanced desktop planetarium program designed for Windows.

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