parallax : Idioms & Phrases

• noun the parallax of a celestial body using two points in the earth's orbit around the sun as the baseline
  annual parallax.
  

WordNet

• the greatest value of the heliocentric parallax, or the greatest annual apparent change of place of a body as seen from the earth and sun; as, the annual parallax of a fixed star.

Webster 1913

• the apparent difference in position of an object as seen separately by one eye, and then by the other, the head remaining unmoved.

Webster 1913

• the parallax of a body with reference to the earth's center. This is the kind of parallax that is generally understood when the term is used without qualification.

Webster 1913

• noun the parallax of a celestial body using two points on the surface of the earth as the earth rotates
  diurnal parallax.
  

WordNet

• . See under Parallax.

Webster 1913

• noun the parallax of a celestial body using two points on the surface of the earth as the earth rotates
  diurnal parallax.
  

WordNet

• noun the parallax of a celestial body using two points in the earth's orbit around the sun as the baseline
  annual parallax.
  

WordNet

• the parallax of a body with reference to the sun, or the angle subtended at the body by lines drawn from it to the earth and sun; as, the heliocentric parallax of a planet.

Webster 1913

• noun the maximum parallax observed when the celestial body is at the horizon
  

WordNet

• the geocentric parallx of a heavenly body when in the horizon, or the angle subtended at the body by the earth's radius.

Webster 1913

• the apparent displacement in position undergone by an object when viewed by either eye singly. Brande & C.

Webster 1913

• (of an optical instrument), their apparent displacement when the eye changes its position, caused by their not being exactly in the focus of the object glass.

Webster 1913

• noun the angle subtended by the mean equatorial radius of the Earth at a distance of one astronomical unit
  

WordNet

• noun the heliocentric parallax of a star
  

WordNet

• the annual parallax of a fixed star.

Webster 1913