zenith distance


nounAstronomy.
  1. the angular distance from the zenith of a point on the celestial sphere to the sphere, measured along a great circle that is perpendicular to the horizon; the complement of the altitude.

Origin of zenith distance

1
First recorded in 1695–1705

Words Nearby zenith distance

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use zenith distance in a sentence

  • He certainly found an annual variation of zenith distance, but not at the times of year required by the parallax.

    History of Astronomy | George Forbes
  • Subtract this calculated zenith distance from 90 to get the calculated altitude.

    Lectures in Navigation | Ernest Gallaudet Draper
  • zenith distance is the distance in degrees, minutes and seconds from your zenith to the center of the observed body.

    Lectures in Navigation | Ernest Gallaudet Draper
  • The zenith distance of any point or celestial body is its angular distance from the zenith of the observer.

    Lectures in Navigation | Ernest Gallaudet Draper
  • The last case is where you are, say, 10 N of the sun (your zenith distance is 10) and the sun is in 20 S declination.

    Lectures in Navigation | Ernest Gallaudet Draper