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Astro*Dictionary by Michael Erlewine

 

 

 

 

11 articles for "House"

House [Astro*Index]

A lune of the celestial sphere defined by the area between two adjacent house circles. The 11th house is the lune between the 11th house circle and the 12th house circle. The 1st house is the lune between 1st house circle (the Horizon) and the 2nd house circle. The extent of a particular house is different for each house system, which prescribes the manner in which the house circle (and its associated cusp) is defined. If the celestial sphere is conceived as a solid sphere, each lune (i.e., each house) defines a solid section of that sphere — resembling the solid sections of an orange. Houses are distinguished from pseudo-houses, whose boundaries are specified by pseudo-House Circles.

See also:
♦ Lune ♦ Celestial Sphere ♦ House Circle ♦ House System ♦ Cusp
House (2) [Astro*Index]

Ptolemaic Astrology. Obsolete.

Ptolemy used this term to refer to the sign a planet rules. For example, Gemini is the "house" of Mercury and Virgo.

See also:
♦ Natural Sign ♦ Natural House ♦ Ptolemaic Astrology
House Circle [Astro*Index]

A great circle on the celestial sphere which passes through the North and South points on the horizon and through the house cusp. A house circle is also sometimes called a cusp line, or cardinal circle. All house circles are perpendicular to the prime vertical. A set of house circles define the boundaries of a house in an astrological chart.

See also:
♦ House System ♦ North Point ♦ Great Circle ♦ Celestial Sphere ♦ House Cusp ♦ Prime Vertical ♦ House ♦ Astrological Chart
House Circle [Munkasey M.]

A Great Circle of the Celestial Sphere which passesfrom the North and South Points of the Horizon, perpendicular to the Prime Vertical around the Celestial Sphere.

See also:
♦ House System ♦ North Point ♦ Great Circle ♦ Celestial Sphere ♦ House Cusp ♦ Prime Vertical ♦ House ♦ Astrological Chart
House Circle, pseudo [Astro*Index]

Distinguished from a (true) House Circle. Pseudo-House Circles pass through the House Cusp, but do not pass through the North and South points on the Horizon. It is unfortunate that authors have used the terms House and House Circle in their description of certain pseudo-House Systems, as much confusion has resulted. We have exercised great caution in our presentation, in order to avoid such errors, and have appropriately inserted the term pseudo to flag such systems.

See also:
♦ House System ♦ North Point ♦ Great Circle ♦ Celestial Sphere ♦ House Cusp ♦ Prime Vertical ♦ House ♦ Astrological Chart
House Cusp [Astro*Index]

The point of intersections of the ecliptic with a house circle. The zodiacal longitude of the house cusp appears on the "wheel" of the standard astrological chart.

See also:
♦ Ecliptic ♦ House Circle ♦ Zodiacal Longitude ♦ Astrological Chart
House Cusp [Munkasey M.]

The cusps, or the lines which mark the beginnings or the ends, of the astrological houses.

See also:
♦ Ecliptic ♦ House Circle ♦ Zodiacal Longitude ♦ Astrological Chart
House Dial [Prima]

A rotating set of equal houses (each 30° wide) that can be used to create new house divisions within the chart. Uranian planetary houses, for example, are normally formed by placing the selected planet on the cusp of the 4th house.

PRIMA represents the 1st house by the arrow, and you can put the arrow in any position. You can also use other house cusps to align new ascendant with certain points in the chart; for example, you can put Mercury on the 3rd-house cusp (its natural placement).

See also:
♦ Ecliptic ♦ House Circle ♦ Zodiacal Longitude ♦ Astrological Chart
House: Diurnal, or Day; Nocturnal, or Night [DeVore]

This is another misnomer which should be supplanted by "Day Home," or by any term other than House. It applies to the rulership of Signs, viz.: when a planet rules two Signs, one is considered its Day Home, the other its Night Home. The use of the term House in such a connection is misleading, since it has nothing to do with a House as astrologically defined. Each planet's Day Home is located in a Positive or Masculine Sign; its Night Home, in a Negative or Feminine Sign.

See also:
♦ Albategnius House System ♦ Alcabitus House System ♦ Ascendant ♦ Aries House System ♦ Placidus ♦ Axial Rotation House System ♦ Campanus House System ♦ Meridian ♦ East Point House System ♦ Equal House System ♦ Morinus House System ♦ Horizon House System ♦ Albategnius (al-Battānī) ♦ Koch House System ♦ Campanus ♦ M-house System ♦ Porphyry ♦ Meridian House System ♦ Regiomontanus ♦ Natural Gradation House System ♦ Placidus House System ♦ Porphyry House System ♦ Regiomontanus House System ♦ Solar House System ♦ Topocentric House System ♦ Zenith ♦ Celestial Sphere ♦ House Cusp ♦ Mc ♦ Asc (Ascendant)
House System [Astro*Index]

Various methods of dividing the celestial sphere are available. Although most such systems divide the sphere into 12 parts, a few use other numbers of parts, such as 8 and 24. Most house systems are named for their inventor. In most house systems (but not all), the longitudes of house cusps #1 and #10 (L1 and L10) are equal, respectively, to the longitudes of MC and ASC (LMC and LASC). In the descriptions which follow, the following constants are used: PI = 3.14159296535 CRD = 180°/PI = 57.29577951 (°/radian)

 

		LMC and LASC and may be computed from:
		   YMC  = sin(ST)
		   XMC  = cos(ST)*cos(obl)
		   LMC  = atan2(YMC,XASC)
		   S    = sin(LAT)*tan(obl)
		   C    = cos(LAT)
		   YASC =  cos(ST)C
		   XASC = -sin(ST)C - S
		   LASC = atan2(YASC,XASC)
		

 

See also:
♦ Albategnius House System ♦ Alcabitus House System ♦ Ascendant ♦ Aries House System ♦ Placidus ♦ Axial Rotation House System ♦ Campanus House System ♦ Meridian ♦ East Point House System ♦ Equal House System ♦ Morinus House System ♦ Horizon House System ♦ Albategnius (al-Battānī) ♦ Koch House System ♦ Campanus ♦ M-house System ♦ Porphyry ♦ Meridian House System ♦ Regiomontanus ♦ Natural Gradation House System ♦ Placidus House System ♦ Porphyry House System ♦ Regiomontanus House System ♦ Solar House System ♦ Topocentric House System ♦ Zenith ♦ Celestial Sphere ♦ House Cusp ♦ Mc ♦ Asc (Ascendant)
House System [Prima]

A house system is a method of dividing the horoscope into 12 sections (representing an archetypal cycle of 12 stages). This cycle begins, usually, with the degree of the zodiac rising at the moment of birth (known as the ascendant).

The 12 houses are related to but different from the 12 signs of the zodiac.

There are many ways of determining which degree constitutes the rising degree and of dividing the sphere into twelve parts. A great deal of contro- versy exists among astrologers over which method is best or if the issue really matters in interpretat- ion.

The Placidus system is probably the most widely used. Some have arrived at this choice through serious comparative study, but others undoubtedly have chosen Placidus mainly because Placidian Tables were the first to be made easily and inexpensively obtainable. The Koch house system is another system that has become quite popular in the 1970s and 1980s.

Part of the controversy is due to problems that occur when casting charts for extreme locations (i.e. inside the Arctic or Antarctic circles). Placidian and Koch systems simply can't compute coordinates for these latitudes. The Equal and Meridian systems are the only systems that provide recognizable houses for these locations; the rest produce bizarre results (very wide and very tiny houses).

House systems are derived from either time-based or space-based calculations.

TIME-BASED HOUSE SYSTEMS
All of the time-based systems may be represented by space. The two systems involve poles. The principle remains the same: Te semi-arc of some major mundane sensitive points is trisected and that trisection becomes the basis for the house division. In time-based systems, the method for deriving the sensitive point to be used involves a calculation based on time.

Placidus, Koch

SPACE-BASED HOUSE SYSTEMS
These systems are based on the trisection of an arc derived from space-based calculations. The sensitive points delineating the arc vary, e.g. vertex, equatorial ascendant, etc.

Equal, Meridian, Topocentric, Morinus, Albategnius

Quadrant house systems are a kind of subdivision of space systems, in that only the ASC and MC are used to define the arc to be trisected.

QUADRANT HOUSE SYSTEMS
Campanus, Porphyry, Regiomontanus, Topological

See also:
♦ Albategnius House System ♦ Alcabitus House System ♦ Ascendant ♦ Aries House System ♦ Placidus ♦ Axial Rotation House System ♦ Campanus House System ♦ Meridian ♦ East Point House System ♦ Equal House System ♦ Morinus House System ♦ Horizon House System ♦ Albategnius (al-Battānī) ♦ Koch House System ♦ Campanus ♦ M-house System ♦ Porphyry ♦ Meridian House System ♦ Regiomontanus ♦ Natural Gradation House System ♦ Placidus House System ♦ Porphyry House System ♦ Regiomontanus House System ♦ Solar House System ♦ Topocentric House System ♦ Zenith ♦ Celestial Sphere ♦ House Cusp ♦ Mc ♦ Asc (Ascendant)

 

Astro*Index Copyright © 1997 Michael Erlewine

 

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