Englishfor English speakers

Englishas a second language

proper motion English

Meaning proper motion meaning

What does proper motion mean?

proper motion noun

— (astronomy) The change in apparent position of a celestial body due to that body's velocity relative to the Sun.

Are you looking for...?

proper | motion

proper mass | proper mucous membrane | proper name | proper vibration | proper vector | proper alignment | proper alveolar | proper article | proper value | proper behavior | proper class | proper condition

Web Analytics