Concept information
Terme préférentiel
proper motion
Définition
- The apparent motion of a star across the sky (not including a star's parallax), arising from the star's velocity through space with respect to the Sun. Proper motion is usually tabulated in star catalogs as changes in right ascension and declination per year or century. (An Etymological Dictionary of Astronomy and Astrophysics, by M. Heydari-Malayeri, https://dictionary.obspm.fr/index.php?formSearchTextfield=proper+motion&formSubmit=Search&showAll=1)
Concept générique
Traductions
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français
URI
http://data.loterre.fr/ark:/67375/MDL-L4MLB69Q-0
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