Zenith distance

Zenith distance
Distance Dis"tance, n. [F. distance, L. distantia.] 1. The space between two objects; the length of a line, especially the shortest line joining two points or things that are separate; measure of separation in place. [1913 Webster]

Every particle attracts every other with a force . . . inversely proportioned to the square of the distance. --Sir I. Newton. [1913 Webster]

2. Remoteness of place; a remote place. [1913 Webster]

Easily managed from a distance. --W. Irving. [1913 Webster]

'T is distance lends enchantment to the view. --T. Campbell. [1913 Webster]

[He] waits at distance till he hears from Cato. --Addison. [1913 Webster]

3. (Racing) A space marked out in the last part of a race course. [1913 Webster]

The horse that ran the whole field out of distance. --L'Estrange. [1913 Webster]

Note: In trotting matches under the rules of the American Association, the distance varies with the conditions of the race, being 80 yards in races of mile heats, best two in three, and 150 yards in races of two-mile heats. At that distance from the winning post is placed the distance post. If any horse has not reached this distance post before the first horse in that heat has reached the winning post, such horse is distanced, and disqualified for running again during that race. [1913 Webster]

4. (Mil.) Relative space, between troops in ranks, measured from front to rear; -- contrasted with {interval}, which is measured from right to left. ``Distance between companies in close column is twelve yards.'' --Farrow. [1913 Webster]

5. Space between two antagonists in fencing. --Shak. [1913 Webster]

6. (Painting) The part of a picture which contains the representation of those objects which are the farthest away, esp. in a landscape. [1913 Webster]

Note: In a picture, the

{Middle distance} is the central portion between the foreground and the distance or the extreme distance. In a perspective drawing, the

{Point of distance} is the point where the visual rays meet. [1913 Webster]

7. Ideal disjunction; discrepancy; contrariety. --Locke. [1913 Webster]

8. Length or interval of time; period, past or future, between two eras or events. [1913 Webster]

Ten years' distance between one and the other. --Prior. [1913 Webster]

The writings of Euclid at the distance of two thousand years. --Playfair. [1913 Webster]

9. The remoteness or reserve which respect requires; hence, respect; ceremoniousness. [1913 Webster]

I hope your modesty Will know what distance to the crown is due. --Dryden. [1913 Webster]

'T is by respect and distance that authority is upheld. --Atterbury. [1913 Webster]

10. A withholding of intimacy; alienation; coldness; disagreement; variance; restraint; reserve. [1913 Webster]

Setting them [factions] at distance, or at least distrust amongst themselves. --Bacon. [1913 Webster]

On the part of Heaven, Now alienated, distance and distaste. --Milton. [1913 Webster]

11. Remoteness in succession or relation; as, the distance between a descendant and his ancestor. [1913 Webster]

12. (Mus.) The interval between two notes; as, the distance of a fourth or seventh. [1913 Webster]

{Angular distance}, the distance made at the eye by lines drawn from the eye to two objects.

{Lunar distance}. See under {Lunar}.

{North polar distance} (Astron.), the distance on the heavens of a heavenly body from the north pole. It is the complement of the declination.

{Zenith distance} (Astron.), the arc on the heavens from a heavenly body to the zenith of the observer. It is the complement of the altitude.

{To keep one's distance}, to stand aloof; to refrain from familiarity. [1913 Webster]

If a man makes me keep my distance, the comfort is he keeps his at the same time. --Swift. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

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  • Zenith distance — Zenith e nith (?; 277), n. [OE. senyth, OF. cenith, F. z[ e]nith, Sp. zenit, cenit, abbrev. fr. Ar. samt urras way of the head, vertical place; samt way, path + al the + ras head. Cf. {Azimuth}.] [1913 Webster] 1. That point in the visible… …   The Collaborative International Dictionary of English

  • zenith distance — noun or zenith angle : the angular distance of a celestial object from the zenith measured by the arc of a vertical circle intercepted between the object and the zenith : the complement of the altitude * * * Astron. the angular distance from the… …   Useful english dictionary

  • zenith distance — The angular distance through the arc of a vertical circle between the zenith and a point on the celestial sphere, measured from the zenith through 90°, for bodies above the horizon. Also known as co altitude …   Aviation dictionary

  • zenith distance — Astron. 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. [1695 1705] * * * …   Universalium

  • Zenith — e nith (?; 277), n. [OE. senyth, OF. cenith, F. z[ e]nith, Sp. zenit, cenit, abbrev. fr. Ar. samt urras way of the head, vertical place; samt way, path + al the + ras head. Cf. {Azimuth}.] [1913 Webster] 1. That point in the visible celestial… …   The Collaborative International Dictionary of English

  • Zenith sector — Zenith e nith (?; 277), n. [OE. senyth, OF. cenith, F. z[ e]nith, Sp. zenit, cenit, abbrev. fr. Ar. samt urras way of the head, vertical place; samt way, path + al the + ras head. Cf. {Azimuth}.] [1913 Webster] 1. That point in the visible… …   The Collaborative International Dictionary of English

  • Zenith telescope — Zenith e nith (?; 277), n. [OE. senyth, OF. cenith, F. z[ e]nith, Sp. zenit, cenit, abbrev. fr. Ar. samt urras way of the head, vertical place; samt way, path + al the + ras head. Cf. {Azimuth}.] [1913 Webster] 1. That point in the visible… …   The Collaborative International Dictionary of English

  • Distance — Dis tance, n. [F. distance, L. distantia.] 1. The space between two objects; the length of a line, especially the shortest line joining two points or things that are separate; measure of separation in place. [1913 Webster] Every particle attracts …   The Collaborative International Dictionary of English

  • Zenith — In broad terms, the zenith is the direction pointing directly above a particular location (perpendicular, orthogonal). Since the concept of being above is itself somewhat vague, scientists define the zenith in more rigorous terms. Specifically,… …   Wikipedia

  • Zenith telescope — A zenith telescope is an instrument adapted for the measurement of small differences of zenith distance, and used in the determination of astronomic latitude.Zenith telescopes are often portable; however the Monument to the Great Fire of London… …   Wikipedia

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