What produces the retrograde motion of mars?

Retrograde Motion in Mars occurs when Earth, which travels faster than Mars, passes Mars. This makes Mars appear to go Westward. The apparent motion of the planets when they appear to move backwards (westward) with resperct to the stars from the direction that they move ordinarily. read more

This apparent retrograde motion is caused by the positioning of the planets Mars and Earth, as Earth passes by Mars (travelling more quickly than Mars due to its closer proximity to the sun). Mars does not actually back track, its orbit remains constant and in the same direction, as with the earth. read more

what produces the retrograde motion of Mars. apparent westward drift. what geometric arrangements did Ptolemy use to explain retrograde motion. read more

Since Earth moves faster in its orbit than Mars does, there are times when as it moves ahead of Mars, it seems as if Mars is moving backward from our perspective. It really is not moving backward. It's just moving slower than Earth. Like the old lady in the right lane with her left blinker on. read more