It is said that our solar system consists of the Sun, Jupiter and miscellaneous debris.  This image, with it's capture of Callisto transiting Jupiter, was pure serendipity.  I only had the high speed camera mounted because I had been challenged to image lunar craters near the Apollo 11 landing site.  And I happened to be focusing it on Jupiter (372,000,000 miles distant)

Jupiter  23:25 - 23:28 hrs.  August 8, 2009
From upper R to lower L, Europa, Callisto, the shadow cast by Callisto, Ganymede and Io.

14" Meade LX200GPS @ prime focus (3556 mm)
ToUcam  1/500 sec exposures,  50 of 2000 frames stacked
Wishing Star Observatory    hgp

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