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PROPER MOTION [1 record]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 1993-11-01

English

Subject field(s)
  • The Stars (Astronomy)
DEF

That component of the space motion of a celestial body perpendicular to the line of sight, resulting in the change of a star's apparent position relative to that of other stars; expressed in angular units.

French

Domaine(s)
  • Étoiles (Astronomie)
DEF

Vitesse angulaire d'une étoile, mesurée généralement en secondes de degré par an.

Spanish

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