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parallactic motion

noun
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Definition of parallactic motion

: the part of the observed proper motion of a star that is caused by the motion of the observer with the solar system as a whole

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“Parallactic motion.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/parallactic%20motion. Accessed 10 Jul. 2020.

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