The sun's Analemma pattern photographed, at the same place, at the same time of the day, over a year, produces a figure 8 pattern.
Image source.
The Analemma phenomenon’s figure 8 pattern is made possible by the earth's 23.5 degree tilt & elliptical orbit.
Analemma picture taken at the same place; at the same time every week for a year.
Image source.
Analemma:
a plot or graph of the position of the sun in the sky at a certain time of day (such as noon) at one locale measured throughout the year that has the shape of a figure 8;
also: a scale (as on a globe or sundial) based on such a plot that shows the sun's position for each day of the year or that allows local mean time.