GIS Dictionary

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declination

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  1. [coordinate systems] In a spherical coordinate system, the angle between the equatorial plane and a line to a point somewhere on the sphere. Media/declination.gif
  2. [coordinate systems] The arc between the equator and a point on a great circle perpendicular to the equator.
  3. [astronomy] The angular distance between a star or planet and the celestial equator.

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