observer's meridian

См. также в других словарях:

• observer's meridian — noun a meridian that passes through the observer s zenith • Hypernyms: ↑meridian, ↑line of longitude …   Useful english dictionary

• Meridian altitude — is an astronomical navigation method of calculating an observer s latitude. Contents 1 Principle 2 Methodology 3 See also 4 References …   Wikipedia

• meridian passage — noun : the passage of a celestial body across an observer s meridian * * * meridian passage noun The transit or passage of a heavenly body across the observer s meridian • • • Main Entry: ↑meridian …   Useful english dictionary

• meridian altitude — noun 1. : the arc of the meridian intercepted between a celestial body at meridian transit and the south point of the horizon 2. : the altitude of a celestial body when it is on an observer s meridian * * * meridian altitude noun The arc of a… …   Useful english dictionary

• meridian — [mə rid′ē ən] adj. [OFr meridien < L meridianus, of noon, southern < meridies, noon, the south < older medidies < medius,MID1 + dies, day: see DEITY] 1. of or at noon 2. of or passing through the highest point in the daily course of… …   English World dictionary

• Meridian (perimetry, visual field) — This article is about the perimetry concept. For other uses of the word, see Meridian. Meridian is used in perimetry and in specifying visual fields. According to IPS Perimetry Standards 1978 (2002): Perimetry is the measurement of [an observer… …   Wikipedia

• Meridian circle — Groombridge transit circle of 1806 The meridian circle, transit circle, or transit telescope is an instrument for observing the time of stars passing the meridian, at the same time measuring its angular distance from the zenith. The idea of… …   Wikipedia

• Meridian (astronomy) — This article is about the astronomical concept. For other uses of the word, see Meridian. The meridian is the outer orange circle which Z, the zenith, lies on. O is the observer. In the sky, a meridian is an imaginary great circle on the… …   Wikipedia

• meridian — /meuh rid ee euhn/, n. 1. Geog. a. a great circle of the earth passing through the poles and any given point on the earth s surface. b. the half of such a circle included between the poles. 2. Astron. the great circle of the celestial sphere that …   Universalium

• meridian angle — noun : the angle between the upper branch of the celestial meridian of an observer and the hour circle of a celestial object measured either westward or eastward from zero to 180 degrees compare hour angle * * * Astron. the angle, measured… …   Useful english dictionary

• meridian — /məˈrɪdiən / (say muh rideeuhn) noun 1. Geography a. a great circle of the earth passing through the poles and any given point on the earth s surface. b. the half of such a circle included between the poles. 2. → magnetic meridian. 3. Astronomy… …