upper meridian passage

См. также в других словарях:

• 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

• Upper transit — Transit Trans it, n. [L. transitus, from transire to go over: cf. F. transit. See {Transient}.] 1. The act of passing; passage through or over. [1913 Webster] In France you are now . . . in the transit from one form of government to another.… …   The Collaborative International Dictionary of English

• upper transit — noun also upper culmination : the passage of a celestial body over the celestial meridian at the higher of its two crossings; also : the point at which such a crossing takes place * * * upper transit, Astronomy. the passage of a heavenly body… …   Useful english dictionary

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