proper motions

A form of proper motion — The change in apparent position of a celestial body due to that body's velocity relative to the Sun.

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Meanings

noun
  1. pluralplural of proper motion
Cite this entry
APA

proper motions. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/proper%20motions

MLA

“proper motions.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/proper%20motions. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “proper motions,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/proper%20motions.

Source: proper motions on Wiktionary, CC BY-SA 4.0.