Astrophoto: Libration by David Liddicott
Posted by brandoniswrite on August 27, 2011
Libration. Credit: David Liddicott
David Liddicott was looking at photos to upload on Flickr when he unexpectedly saw these two photos which he first thought were duplicates.
These photos of the Moon were taken two years apart on May 12, 2005 and May 20, 2007, respectively. Upon examining the photos, he realized that they’re almost in the same phase.
“On closer examination I could see that the libration of the moon meant that the features in the images were not quite in the same place, so I created the composite image and checked up using a planatarium program what the exact phases were.”
Check out David’s photos on his Flickr page.
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© dcast for Universe Today, 2011. |
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