Earth’s Analemma

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"This is a remarkable record of the Sun's yearly journey through planet Earth's sky, made with planned multiple exposures captured on a single frame of a film. Exposures were made at the same time of day (9:00am local time), capturing the Sun's position on dates from January 7 through December 20, 2003. The multiple suns trace an intersecting curve known as an analemma." 

An analemma is caused by the 23.5 degree tilt of the earth and the elliptical orbit. 

Other planets produce, due to their different tilts and elliptical orbits, different looking analemmas. The image below is a simulation from Mars – called a Martian Analemma:
"It shows the late afternoon Sun that would have been seen from the Sagan Memorial Station once every 30 Martian days beginning on Pathfinder's Sol 24 (July 29, 1997). Slightly less bright, the simulated Sun is only about two thirds the size as seen from Earth, while the Martian dust, responsible for the reddish sky of Mars, also scatters some blue light around the solar disk.
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Via TWAN and NASA