Prime vertical

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


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  • 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 — 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 — 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 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 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

  • 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

  • prime vertical dial — noun : a sundial in which the shadow is projected on the plane of the prime vertical : a vertical south dial …   Useful english dictionary

  • prime-vertical transit — noun : a transit instrument mounted so that its telescope revolves in the plane of the prime vertical …   Useful english dictionary

  • prime vertical — noun Astronomy a great circle in the celestial sphere passing through the zenith and the east and west points of the horizon …   English new terms dictionary

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