ANALEMMA An analemma is that figure-8 curve you get when you mark the position of the Sun at the same time each day for one year. But the trick to imaging an analemma of the Moon is to wait bit longer. On average the Moon returns to the same position in the sky about 50 minutes and 29 seconds later each day. So photograph the Moon 50 minutes 29 seconds later on successive days. Why Figure 8? Earth orbits around the Sun on an elliptical path. Earth also revolves around the Sun on a slant; it has an axial tilt of around 23.4 degrees. These two factors combine to generate the figure 8 Analemma curve. Read more: (1) https://science.nasa.gov/analemma-moon (2) https://www.timeanddate.com/astronomy/solar-analemma.html #Space
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