r/spaceporn • u/Pjacob77 • Dec 13 '19

Last full moon of the decade!

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u/SalamandarShell Dec 13 '19

This is so ridiculously clear it somehow appears 3D.

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u/[deleted] Dec 13 '19 edited Dec 13 '19

I don't know the exact name, but this is a visual trick that involves the shape of the curvature of the moon at that edge (the horizon, if you were on the surface)

Essentially, if you were on the moon the horizon would be a flat line just like here on Earth, but you're looking through that horizon from far above, essentially.