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Astro*Dictionary by Michael Erlewine

 

 

 

 

10 articles for "Heliocentric"

Heliocentric [Astro*Index]

Sun-centered. Positions of planets, including the Earth and Moon, referred to the center of the Sun. It is normal to give the Geometric Positions, i.e., positions not corrected for light-time.

See also:
♦ Heliocentric Coordinates ♦ Geocentric Coordinates ♦ Light Time Correction ♦ Geometric Position
Heliocentric [Munkasey M.]

As viewed from the center of the Sun; or from the Sun.

See also:
♦ Heliocentric Coordinates ♦ Geocentric Coordinates ♦ Light Time Correction ♦ Geometric Position
Heliocentric [DeVore]

The Sun as a center. The science of Astrology is largely based on geocentric observations, since it treats of cosmic forces as perceived or received by an inhabitant of the Earth. Some authorities believe that heliocentric considerations may contribute added testimony of importance, for which reason the heliocentric longitudes 2nd latitudes of the planets are to be found in some ephemerides. In reducing heliocentric positions to geocentric terms, a mean orbit is employed wherein the planets are presumed to move in a circle at a uniform rate. This is corrected by an equation to centre, based upon the eccentricity of the orbit – its departure from a true circle. Having determined the true position in the orbit, a further equation, improperly called parallax, is employed to reduce the position to its geocentric longitude.

See also:
♦ Heliocentric Coordinates ♦ Geocentric Coordinates ♦ Light Time Correction ♦ Geometric Position
Heliocentric Astrology [Astro*Index]

System of study based on the perspective of an observer on the Sun

See also:
♦ Ecliptic ♦ Heliocentric Coordinates
Heliocentric Astrology [DeVore]

One wherein the astrological interpretations are based upon a Figure in which the solar system bodies are located according to their heliocentric longitudes. It is more or less experimental and used by but few astrologers.

See also:
♦ Ecliptic ♦ Heliocentric Coordinates
Heliocentric Chart [Prima]

Heliocentric (Greek: "Sun-centered") astrology functions from the perspective of an observer on the Sun. Thus the heliocentric coordinates of a celestial body describe its position as viewed from the center of the Sun (the Earth and Moon are taken as a single unit). These coordinate positions can be in reference to the plane of either the ecliptic or the equator and are usually geometric (not corrected for light-time).

While geocentric charts reflect the practical, "down-to-earth" details of one's daily experiences, heliocentric charts are understood to relate more to an individual's true inner self as separate from the outer circumstances of day-to-day existence.

See also:
♦ Ecliptic ♦ Geocentric
Heliocentric Coordinates [Astro*Index]

Heliocentric coorinates of a celestial body; i.e., as 'viewed' from the center of the Sun. Coordinate systems used to represent such positions are the Equatorial and Ecliptic. Either spherical or Cartesian representation is used.

See also:
♦ Equatorial Coordinates ♦ Ecliptic Coordinates ♦ Spherical Coordinates ♦ Cartesian Coordinates
Heliocentric Longitude and Latitude [DeVore]

That based on the Sun as a center. The Nautical Almanac gives the Heliocentric positions of all celestial bodies. The Astrologer's Ephemeris is now made from the Nautical Almanac by reducing these positions to their Geocentric equivalents.

See also:
♦ Ecliptic ♦ Heliocentric Coordinates ♦ Heliocentric Astrology
Heliocentric Parallax [Astro*Index]

The parallax, or half the angular difference in a body's observed position, when it is measured from two opposite points of the Earth's orbit. Also defined as the angle subtended at the star by one Astronomical Unit (appxoximately the radius of the Earth's orbit). Stellar parallax can only be measured for nearby stars.

See also:
♦ Annual Parallax ♦ Astronomical Unit
Heliocentric Parallax [Munkasey M.]

The parallax, or angular separation in a body's observed position, which is measured first on one side of the Earth's Solar orbit and then the other.

See also:
♦ Annual Parallax ♦ Astronomical Unit

 

Astro*Index Copyright © 1997 Michael Erlewine