How the sky appears to us

WHYY-FM’s Dave Heller and astronomer Derrick Pitts celebrate Skytalk’s 18th season on the air by doing what they do best… talking about the sky. So, let’s get back to basics and take a look up into the wild blue yonder. This week we’ll talk about how the sky appears to us. How astronomers establish overhead directions, and some night sky highlights for this coming week.[audio: st20090112.mp3]

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