Four seasons - solstices and equinoxes
Click on any of the five panels to run the simulation it contains.
The outer four solstice and equinox simulations show the Earth over a repeating period of five days around the relevant position in its orbit. If you watch closely - you'll see the shadow of the Sun on the Earth shift slightly before the simulation repeats.
The central panel simulation shows the inner Solar system - but not quite as it really is:
The planets are displayed 2000 times larger (in radius) than they really are (and the Sun 40 times larger).
And the central simulation image is updated once every 25 hours (in simulation time) - so the Earth appears to rotate just once in what would really be 25 days.