Regarding your jupiter problem, u will be using something like
glTranslatef(coords of moon);
// draw moon
This means that u will probably be having the coords of the moon and Jupiter in some variables. Use these variables to position and orient the camera.
I'll try to code this myself and let u know if I meet with any success.
CZEP, since I haven't yet worked on the polarview system, I can't offer any help. My apologies for deviating from ur question.
[This message has been edited by abhijeet_maharana (edited 07-09-2003).]