Monday, October 14, 2019

The Busy Sky

Today's Astronomy Picture of the Day shows Messier 31, the Andromeda Galaxy. 300 images, each taken over 30 seconds were stacked. As a result, the quiet sky is streaked with meteors, satellites, airplane lights and more. "Mouseover" the image in the link to switch between the two versions: cleaned up and "natural" or see the second image below.

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