annual parallax

noun
the parallax of a celestial body using two points in the earth's orbit around the sun as the baseline
Hypernyms: ↑parallax
Hyponyms: ↑stellar parallax

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noun

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annual parallax,
the apparent change or amount of change in the position of a heavenly body as a result of the earth's motion around the sun; heliocentric parallax. It is the angle subtended at the heavenly body by the radius of the earth's orbit.

Useful english dictionary. 2012.

Look at other dictionaries:

  • Annual parallax — Parallax Par al*lax, n. [Gr. ? alternation, the mutual inclination of two lines forming an angle, fr. ? to change a little, go aside, deviate; para beside, beyond + ? to change: cf. F. parallaxe. Cf. {Parallel}.] 1. The apparent displacement, or… …   The Collaborative International Dictionary of English

  • annual parallax — metinis paralaksas statusas T sritis fizika atitikmenys: angl. annual parallax; heliocentric parallax vok. heliozentrische Parallaxe, f; Jahresparallaxe, f; jährliche Parallaxe, f rus. гелиоцентрический параллакс, m; годовой параллакс, m pranc.… …   Fizikos terminų žodynas

  • annual parallax. — See under parallax (def. 2). * * * …   Universalium

  • annual parallax. — See under parallax (def. 2) …   Useful english dictionary

  • Parallax — Par al*lax, n. [Gr. ? alternation, the mutual inclination of two lines forming an angle, fr. ? to change a little, go aside, deviate; para beside, beyond + ? to change: cf. F. parallaxe. Cf. {Parallel}.] 1. The apparent displacement, or… …   The Collaborative International Dictionary of English

  • Parallax of the cross wires — Parallax Par al*lax, n. [Gr. ? alternation, the mutual inclination of two lines forming an angle, fr. ? to change a little, go aside, deviate; para beside, beyond + ? to change: cf. F. parallaxe. Cf. {Parallel}.] 1. The apparent displacement, or… …   The Collaborative International Dictionary of English

  • parallax second — par al*lax sec ond, n. An {annual parallax} of one second of an arc; applied to celestial objects outside the solar system. It is used to measure the distance of an astronomical object from the Earth. A star which has an annual parallax of one… …   The Collaborative International Dictionary of English

  • parallax — [par′ə laks΄] n. [Fr parallaxe < Gr parallaxis < parallassein, to vary, decline, wander < para ,PARA 1 + allassein, to change < allos, other: see ELSE] 1. the apparent change in the position of an object resulting from the change in… …   English World dictionary

  • Parallax — For other uses, see Parallax (disambiguation). A simplified illustration of the parallax of an object against a distant background due to a perspective shift. When viewed from Viewpoint A , the object appears to be in front of the blue square.… …   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

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