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Portable Network Graphic  |  1996-04-23  |  8KB  |  242x277  |  8-bit (43 colors)
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OCR: RETROGRADE MOTION RETROGRADE MOTION describes the motion of an object that is, or appears to be, spinning or orbiting in the opposite direction to the majority of objects in its orbital system. In the Solar System, retrograde motion is opposite to direct motion, which is the counterclockwise motion of the Earth around the Sun when observed from above the Sun's North pole.