Bull's Eye Moons
Posted on Monday, December 14, 2015
Uploaded by Waspie_Dwarf
Image credit: NASA/JPL-Caltech/Space Science Institute
Uploader comment: Like a cosmic bull's-eye, Enceladus and Tethys line up almost perfectly for Cassini's cameras. Since the two moons are not only aligned, but also at relatively similar distances from Cassini, the apparent sizes in this image are a good approximation of the relative sizes of Enceladus (313 miles or 504 kilometers across) and Tethys (660 miles or 1,062 kilometers across).
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