Pluto
Pluto in Motion! The link shows an
animation of the planet Pluto that was produced by taking two images,
30 minutes apart, of the sky where pluto should be. Then
putting them in a gif file so they alternate in a continuous
loop. The result is a image where most of the stars appear
stationary, but one 'star' appears to move back and forth.
The star is of course Pluto. During the 30 minutes in
between the two images, the planet moved 5,400 miles. You
can find pluto about 2/3 of the way across the image and about half way
down.
