Carter (poli-equatorial) house system

In this house system the celestial sphere is divided into an 'orange' with 12 commensurate segments. The axis of this orange runs through the celestial poles, whereas its 'equator' comes to lie on the celestial equator (hence the name 'poli-equatorial'). Therefore, the house cusps lie on the Meridians. The Meridian of the 1st house cusp runs through the Ascendant. The Meridians of the other house cusps follow at intervals of 30° each.

In this house system, the 1st house cusps is identical with the Ascendant, but the 10th house cusp is not identical with the MC.

The house system was invented by the English astrologer Charles Carter (1887-1968).

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