"...a curve representing the angular offset of a celestial body (usually the Sun) from its mean position on the celestial sphere as viewed from another celestial body (usually the Earth). For instance, knowing that Earth's average solar day is exactly 24 hours (by definition), an analemma can be traced by plotting the position of the Sun as viewed from a fixed position on Earth at 24-hour intervals for an entire year. The resulting curve resembles a figure 8."
Credit & Copyright:Anthony Ayiomamitis
Analemma's can also be plotted from the vantage point of other planets. The following simulation shows the late afternoon Sun that would have been seen from the Sagan Memorial Station once every 30 Martian days (sols) beginning on Pathfinder's Sol 24 (July 29, 1997):