This is a time lapse of the orbit of venus from January 1 to December 31 of 2007. The line which appears in the middle of the movie is the retrograde period of July 27 - September 2, when it moves backwards through the zodiac.
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[Excerpt from http://en.wikipedia.org/wiki/Retrograde_and_direct_motion]
Direct motion is the motion of a planetary body in a direction similar to that of other bodies within its system, and is sometimes called prograde motion. Retrograde motion is motion in the opposite direction. In the case of celestial bodies, such motion may be real, defined by the inherent rotation or orbit of the body, or apparent, as seen in the skies from Earth.
Great work, Merre! Fine performances from your "stars".
NickDaganBest 3 years ago 3