retrograde motion concept from the Astronomy knowledge base

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retrograde motion

subject fact

retrograde motion has definition In a backwards direction; in astronomy this means in a direction corresponding to east-to-west. has source: Abbot, D. 1984 Astronomers, Peter Bedrick Books, New York, 2001-09-27 09:29:52.0
has definition Apparent motion of a planet in a direction opposite to its normal progress across the sky produced by the orbital motion of the earth. has source: Ferris, T. 1988 Coming of Age in the Milky Way, Morrow, 2001-09-27 09:29:52.0
is a kind of motion

physical process has domain physics 2001-09-27 09:29:38.0

retrograde motion	has definition In a backwards direction; in astronomy this means in a direction corresponding to east-to-west.
	has definition Apparent motion of a planet in a direction opposite to its normal progress across the sky produced by the orbital motion of the earth.
	is a kind of motion
physical process	has domain physics