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declination |
Also found in: Medical, Acronyms, Encyclopedia, Wikipedia, Hutchinson | 0.03 sec. |
declination Noun 1. Astron the angular distance of a star or planet north or south from the celestial equator 2. the angle made by a compass needle with the direction of the geographical north pole
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The angular distance to a body on the celestial sphere measured north or south through 90 degrees from the celestial equator along the hour circle of the body. Comparable to latitude on the terrestrial sphere. See also magnetic declination; magnetic variation. |
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| I knew two, that were competitors for the secretary's place in Queen Elizabeth's time, and yet kept good quarter between themselves; and would confer, one with another, upon the business; and the one of them said, That to be a secretary, in the declination of a monarchy, was a ticklish thing, and that he did not affect it: the other straight caught up those words, and discoursed with divers of his friends, that he had no reason to desire to be secretary, in the declination of a monarchy. The sun rose in the undoubted east and set in the undoubted west, corrected and proved, of course, by declination, deviation, and variation; and the nightly march of the stars and constellations proceeded across the sky. But, in order that the moon should reach the zenith of a given place, it is necessary that the place should not exceed in latitude the declination of the luminary; in other words, it must be comprised within the degrees 0@ and 28@ of lat. |
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