Analemma: Earth vs Mars

  • Thread starter Swankie
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How come the analemma for Earth is in a "figure 8" form and Mars is circular? Does it have to do with radial velocity?
 

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Drakkith
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From wikipedia: http://en.wikipedia.org/wiki/Analemma

On Earth, the analemma appears as a figure eight, but on other solar system bodies it may be very different[3] because of the interplay between the tilt of each body's axis and the elliptical shape of its orbit.
 

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