Wednesday, October 08, 2008

Moon overhead

Assuming spherical bodies, how large is the patch on earth where the moon is directly overhead? The patch on the moon vice versa? The sun? Other planets?

1 comment :

Trevor Turton said...

The sun and moon both subtend about half a degree when viewed from the surface of the earth. That's equivalent to a circle of diameter 56 kilometers or 35 miles on the earth's surface.