BabelNet

bn:03309454n

Noun Concept

SYL

No term available

Proper motion is the astrometric measure of the observed changes in the apparent places of stars or other celestial objects in the sky, as seen from the center of mass of the Solar System, compared to the abstract background of the more distant stars. Wikipedia

Relations

Sources

IS A

Mouvement d'une étoile

physical quantity

DESCRIBED BY SOURCE

Armenian Soviet Encyclopedia

DIFFERENT FROM

proper velocity

DISCOVERER OR INVENTOR

Edmond halley

STUDIED BY

astrometry