Astronomy Answers
From the Astronomical Dictionary


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The description of the word you requested from the astronomical dictionary is given below.

the declination

declinatio = [Latin] deviation

The declination is the coordinate in the equatorial coordinate system in the sky that is similar to latitude on Earth. It ranges between −90 degrees at the southern celestial pole and +90 degrees at the northern celestial pole and is zero at the celestial equator. The other equatorial coordinate is the right ascension.