prime vertical circle

prime vertical circle
первый вертикал (проходящий через восточную и западную точки горизонта)

Englsh-Russian aviation and space dictionary. - M.: Military publishing house USSR Ministry of Defence. . 1974.

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Смотреть что такое "prime vertical circle" в других словарях:

  • prime vertical circle — The prime vertical circle cuts the observer’s vertical circle at 90° and forms the east and west point of the horizon …   Aviation dictionary

  • vertical circle — A great circle of the celestial sphere passing through the celestial poles as well as the observer’s zenith and nadir. Vertical circles are perpendicular to the horizon. The prime vertical circle, or the prime vertical, passes through the east… …   Aviation dictionary

  • Prime vertical — Prime Prime, a. [F., fr. L. primus first, a superl. corresponding to the compar. prior former. See {Prior}, a., {Foremost}, {Former}, and cf. {Prim}, a., {Primary}, {Prince}.] 1. First in order of time; original; primeval; primitive; primary.… …   The Collaborative International Dictionary of English

  • Prime-vertical dial — Prime Prime, a. [F., fr. L. primus first, a superl. corresponding to the compar. prior former. See {Prior}, a., {Foremost}, {Former}, and cf. {Prim}, a., {Primary}, {Prince}.] 1. First in order of time; original; primeval; primitive; primary.… …   The Collaborative International Dictionary of English

  • Prime-vertical transit instrument — Prime Prime, a. [F., fr. L. primus first, a superl. corresponding to the compar. prior former. See {Prior}, a., {Foremost}, {Former}, and cf. {Prim}, a., {Primary}, {Prince}.] 1. First in order of time; original; primeval; primitive; primary.… …   The Collaborative International Dictionary of English

  • Prime vertical — Vertical Ver ti*cal, n. 1. Vertical position; zenith. [R.] [1913 Webster] 2. (Math.) A vertical line, plane, or circle. [1913 Webster] {Prime vertical}, {Prime vertical dial}. See under {Prime}, a. [1913 Webster] …   The Collaborative International Dictionary of English

  • Prime vertical dial — Vertical Ver ti*cal, n. 1. Vertical position; zenith. [R.] [1913 Webster] 2. (Math.) A vertical line, plane, or circle. [1913 Webster] {Prime vertical}, {Prime vertical dial}. See under {Prime}, a. [1913 Webster] …   The Collaborative International Dictionary of English

  • Vertical circle — In astronomy, a vertical circle is a great circle on the celestial sphere that is perpendicular to the horizon. Therefore it passes through the zenith and the nadir. There is a vertical circle for any given direction. The vertical circle which is …   Wikipedia

  • prime vertical — noun : the vertical circle at right angles to the celestial meridian and passing through the east and west points of the horizon * * * prime vertical noun A great celestial circle passing through the east and west points of the horizon, and… …   Useful english dictionary

  • Prime vertical — In astronomy and astrology, the prime vertical is the vertical circle passing east and west through the zenith, and intersecting the horizon in its east and west points.References*1911 …   Wikipedia

  • true prime vertical — The vertical circle that intersects the geographical poles and the true east and west points of the horizon, as distinguished from the magnetic, compass, or grid prime vertical through the magnetic, compass, or grid east and west points,… …   Aviation dictionary


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