- parallactic motion
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the apparent motion of stars due to the earth's orbital motion.[1885-90]
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Universalium. 2010.
parallactic motion
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parallactic motion — noun : the part of the observed proper motion of a star that is caused by the motion of the observer with the solar system as a whole * * * Astron. the apparent motion of stars due to the earth s orbital motion. [1885 90] * * * parallactic motion … Useful english dictionary
parallactic ellipse — Astron. the apparent ellipse, as seen against the background of more distant stars, described annually by a nearby star because of the earth s orbital motion around the sun. Cf. parallax (def. 2). * * * … Universalium
parallactic equation — noun : a minor inequality of the moon s orbital motion caused by the difference between the sun s perturbing action on the moon when at new and full and used in finding the sun s parallax … Useful english dictionary
parallactic orbit — noun : the orbit in which a star appears to move once round each year owing to the earth s orbital motion round the sun … Useful english dictionary
parallactic ellipse — Astron. the apparent ellipse, as seen against the background of more distant stars, described annually by a nearby star because of the earth s orbital motion around the sun. Cf. parallax (def. 2) … Useful english dictionary
Heliocentrism — Heliocentric redirects here. For the albums, see Heliocentric (Paul Weller album) and Heliocentric (The Ocean Collective album). Heliocentric Universe … Wikipedia
Peter van de Kamp — Saltar a navegación, búsqueda Piet van de Kamp (Kampen (Holanda), 26 de diciembre 1901–18 de mayo 1995), más conocido por su nombre anglosajonizado Peter van de Kamp. Astrónomo holandés norteamericano especializado en medir el movimiento propio y … Wikipedia Español
Mizar and Alcor — in constellation Ursa Major Observation data Epoch J2000 Equinox J2000 … Wikipedia
parallax — parallactic /par euh lak tik/, adj. parallactically, adv. /par euh laks /, n. 1. the apparent displacement of an observed object due to a change in the position of the observer. 2. Astron. the apparent angular displacement of a celestial body due … Universalium
Aberration of light — Light from location 1 will appear to be coming from location 2 for a moving telescope due to the finite speed of light, a phenomenon known as the aberration of light. The aberration of light (also referred to as astronomical aberration or stellar … Wikipedia
