The magnetic declination (also known as grid magnetic angle in military circles) at any point on the Earth is the angle between the local magnetic field -- the direction the north end of a compass points -- and true north. The declination is positive when the magnetic north is east of true north.Change of declination ... · Stating the declination · Learning the ...

at a given point, the angle between magnetic north and true north

Right Ascension and Declination This coordinate system is illustrated in the following figure (for which you should imagine the earth to be a point at the center of the sphere).

Learn about declination adjustments. To understand declination you must first realize that there are two North Poles.

noun. a bending or sloping downward; deviation from the horizontal or vertical; an oblique variation from some definite direction; the angle formed by a magnetic needle with the ...

Synonyms of declination at Thesaurus.com. declination definitions and translations. Crossword and puzzle games.

In astronomy, declination (abbrev. dec or δ) is one of the two coordinates of the equatorial coordinate system, the other being either right ascension or hour angle. Dec is comparable to latitude, projected onto the celestial sphere, and is measured in degrees north and south of the celestial equator.

noun . 1. a bending, sloping, or moving downward. 2. deterioration; decline. 3. a swerving or deviating, as from a standard. 4. a polite refusal. 5. Astronomy. the angular distance ...

dec·li·na·tio n   (d k l-n sh n) 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 ...

Magnetic declination adjustment values are easy to determine with these helpful map charts and page links.