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- Proper_motion abstract "The proper motion of a star is its rate of angular change in position over time, as observed from the center of mass of the Solar System. It is measured in seconds of arc per year, arcsec/yr, where 3600 arcseconds equal one degree. This contrasts with radial velocity, which is the time rate of change in distance toward or away from the viewer, usually measured by Doppler shift of received radiation. The proper motion is not entirely "proper" (that is, intrinsic to the star) because it includes a component due to the motion of the solar system itself. Due to the finite speed of light (that is also constant; without regard to whatever is the velocity of the emanating or reflecting source) the instantaneous velocities of distant stars cannot be observed; the observed proper motion reflects the velocity of a star (relative to the Solar System) at the time the light was emitted from that source.".
- Proper_motion thumbnail Proper_motion.JPG?width=300.
- Proper_motion wikiPageExternalLink simbad.
- Proper_motion wikiPageExternalLink index-e.html.
- Proper_motion wikiPageExternalLink halley-proper-motions.
- Proper_motion wikiPageExternalLink index.php?project=HIPPARCOS&page=high_p.
- Proper_motion wikiPageExternalLink www.xephem.com.
- Proper_motion wikiPageID "52015".
- Proper_motion wikiPageRevisionID "605351593".
- Proper_motion hasPhotoCollection Proper_motion.
- Proper_motion subject Category:Astrometry.
- Proper_motion subject Category:Stellar_astronomy.
- Proper_motion comment "The proper motion of a star is its rate of angular change in position over time, as observed from the center of mass of the Solar System. It is measured in seconds of arc per year, arcsec/yr, where 3600 arcseconds equal one degree. This contrasts with radial velocity, which is the time rate of change in distance toward or away from the viewer, usually measured by Doppler shift of received radiation.".
- Proper_motion label "Eigenbeweging".
- Proper_motion label "Eigenbewegung (Astronomie)".
- Proper_motion label "Estrela de movimento próprio".
- Proper_motion label "Moto proprio".
- Proper_motion label "Mouvement propre".
- Proper_motion label "Movimiento propio".
- Proper_motion label "Proper motion".
- Proper_motion label "Ruch własny".
- Proper_motion label "Собственное движение".
- Proper_motion label "حركة خاصة".
- Proper_motion label "固有運動".
- Proper_motion label "自行".
- Proper_motion sameAs Vlastní_pohyb.
- Proper_motion sameAs Eigenbewegung_(Astronomie).
- Proper_motion sameAs Ιδία_κίνηση.
- Proper_motion sameAs Movimiento_propio.
- Proper_motion sameAs Mouvement_propre.
- Proper_motion sameAs Gerak_diri.
- Proper_motion sameAs Moto_proprio.
- Proper_motion sameAs 固有運動.
- Proper_motion sameAs 고유운동.
- Proper_motion sameAs Eigenbeweging.
- Proper_motion sameAs Ruch_własny.
- Proper_motion sameAs Estrela_de_movimento_próprio.
- Proper_motion sameAs m.0dphc.
- Proper_motion sameAs Q193223.
- Proper_motion sameAs Q193223.
- Proper_motion wasDerivedFrom Proper_motion?oldid=605351593.
- Proper_motion depiction Proper_motion.JPG.
- Proper_motion isPrimaryTopicOf Proper_motion.
