declination

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declination,

in astronomy, one of the coordinates in the equatorial coordinate systemequatorial coordinate system,
the most commonly used astronomical coordinate system for indicating the positions of stars or other celestial objects on the celestial sphere. The celestial sphere is an imaginary sphere with the observer at its center.
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. The declination of a celestial body is its angular distance north or south of the celestial equator measured along its hour circlehour circle,
in astronomy, a secondary axis in the equatorial coordinate system. The hour circle of a celestial body is the great circle on the celestial sphere that passes through both the body and the north celestial pole.
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declination

(dek-lă-nay -shŏn) (dec) Symbol: δ. A coordinate used with right ascension in the equatorial coordinate system. The declination of a celestial body, etc., is its angular distance (from 0° to 90°) north (counted positive) or south (counted negative) of the celestial equator. It is measured along the hour circle passing through the body.

Declination

(religion, spiritualism, and occult)

The solar system lies more or less in one geometric plane, which is why astrological charts can be drawn in two dimensions. If the celestial equator (which is the terrestrial equator extended out into space, and projected against the background of the stars) is used as a point of reference, it is found that, at any given time, most celestial bodies do not lie exactly in the same plane, but, rather, are located somewhat north or south of the celestial equator. The angular distance (distance expressed in degrees and minutes) of these bodies north or south of the celestial equator is their declination. Because some astrologers regard planets at the same declination as being in aspect with one another, planets’ declinations are often recorded in ephemerides.

declination

[‚dek·lə′nā·shən]
(astronomy)
The angular distance of a celestial object north or south of the celestial equator.
(geophysics)
The angle between the magnetic and geographical meridians, expressed in degrees and minutes east or west to indicate the direction of magnetic north from true north. Also known as magnetic declination; variation.
(navigation)
In a system of polar or spherical coordinates, the angle at the origin between a line to a point and the equatorial plane, measured in a plane perpendicular to the equatorial plane.
The arc between the equator and the point measured on a great circle perpendicular to the equator.

declination

declination
declinationclick for a larger image
i. The angular difference in direction between magnetic north and true north, or between grid north and true north; hence, magnetic declination and grid declination.
ii. The angular distance of a celestial body from the celestial equator along the hour circle of the body. Measured in degrees, or radians, through 90°, and named north or south, depending on whether the body is north or south of the celestial equator. Declination on the celestial sphere is analogous to the latitude of the earth. The value of declination cannot exceed 90°.

declination

1. Astronomy the angular distance, esp in degrees, of a star, planet, etc., from the celestial equator measured north (positive) or south (negative) along the great circle passing through the celestial poles and the body
References in periodicals archive ?
Caption: The equatorial head can be separated into two pieces with the RA axis and polar base (left) weighing 26 pounds, and the declination axis (right) weighing 18 pounds.
This reduction of energy consumption can be achieved, if the pump proportional pressure control is applied in comparison with the constant differential pressure control mode and the declination of pump proportional pressure control curves is up to 90% from the duty point head value.
The higher the level of the declination of pump proportional pressure control curves is, the higher level of energy saving is.
This algorithm is based on 0[degrees] declination at the March equinox.
Simple geometry can be used to show that the angle of elevation of the Sun on the meridian near noon is 90[degrees] minus the angular difference between the Sun's declination and an observer's latitude (Kaler, 2002: 43) and the result could be graphed for this specific latitude.
The dating via declinations may be illustrated by the observation of 7 June 1596 (De Veer's journal date).
The sun's declinations mentioned by De Veer are given in Table 1.
To make the modern calculations, the following information must be available: the selected position of the observer, both latitude and longitude; the declinations and sidereal Hour Angles of both stars, and a table of Greenwich Hour Angles for Aries as a function of time.
In considering whether a declination may be warranted in cases where a company has met all the requirements for full credit, the Guidance states that the Fraud Section prosecutors must also take into account countervailing interests, including the seriousness of the offense.
For moving objects such as the Sun, Moon, and planets, right ascensions and declinations are often for the "equinox of date": the actual date listed.
I encountered problems of nearly every kind, including getting sunburned while working at the focus, birds nesting in the dish trusses every spring, accumulated rainwater dousing my head while I was adjusting the declination, and having to shovel out the dish after every snowstorm.
The surplus lines bill currently before Congress would provide exemptions from state declination requirements for qualifying large municipalities, not-for-profit organizations, and commercial enterprises that request them.