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Rareproper motion
The correct spelling is proper motion.
How to pronounce proper motion
noun
Say it like: Pro-per- mo-sho-n
The correct spelling is proper motion. The change in apparent position of a celestial body due to that body's velocity relative to the Sun.
Usage Examples
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Definition
noun
- 1.The change in apparent position of a celestial body due to that body's velocity relative to the Sun.
Similar words
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