#15548
Profile photo of Andrew Normand

if you switch to the geocentric view you can see the planets have funny shadows and wobble about sometimes (retrograde motion)

this brian cox clip about retrograde motion is great

http://www.youtube.com/watch?v=kbynKfNfHk4

also to investigate seasons you can pick a time say 12 pm and cycle through the months to show the sun going higher/lower in the sky, theres a brilliant sixty symbols clip (she uses stellarium)

http://www.youtube.com/watch?v=s_NN8pZxTP8

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