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- DictionaryDec·li·na·tion/ˌdekləˈnāSHən/
noun
- 1. the angular distance of a point north or south of the celestial equator: "the declination of Arcturus is 19 degrees north"
- 2. formal refusal: US "in the face of this declination of the proposition"
In astronomy, declination (abbreviated dec; symbol δ) is one of the two angles that locate a point on the celestial sphere in the equatorial coordinate system, the other being hour angle. The declination angle is measured north (positive) or south (negative) of the celestial equator, along the hour circle passing through the point in question.
Declination is simply a manifestation of the complexity of the geomagnetic field. The field is not perfectly symmetrical; it has non-dipolar "ingredients," and the dipole itself is not perfectly aligned with the rotational axis of the Earth.
Define declination. declination synonyms, declination pronunciation, declination translation, English dictionary definition of declination. n. 1. A sloping or bending downward. 2. A falling off, especially from prosperity or vigor; a decline. 3. A deviation, as from a specific direction or...
Declination is defined as the position of the sun at noon (solar time) north and south of the celestial equator (measured in degrees).
Declination definition, a bending, sloping, or moving downward. See more.
noun. a bending, sloping, or moving downward. deterioration; decline. a swerving or deviating, as from a standard. a polite refusal. Astronomy. the angular distance of a heavenly body from the celestial equator, measured on the great circle passing through the celestial pole and the body. variation (def. 8).
Define declination: angular distance north or south from the celestial equator measured along a great circle passing through the celestial poles—usage, synonyms, more.
