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[Phys-l] Question re: Titan Orbit



Go to http://hubblesite.org/newscenter/archive/releases/2009/12/video/b/
Play the movie and watch the orbit of Saturn's moon, Titan.

This orbit is (or appears to me to be ) in a plane at a CONSTANT latitude of about 75 degrees.
This puzzles me. Should not the orbital plane contain the CG of the system (almost coincident with Saturn's center)?

Somebody please straighten me out!

Bob Sciamanda
Physics, Edinboro Univ of PA (Em)
trebor@winbeam.com
http://www.winbeam.com/~trebor/