The 12 Astrological Houses
The terrestrial framework mapping the celestial sphere onto human experience: angles, quadrants, hemispheres, and classical domains.
The horizon (Ascendant/Descendant) and meridian (Midheaven/Imum Coeli) are deterministic astronomical axes (Tier A). The mathematical division of the twelve intermediate spaces—whether Whole Sign, Placidus, Koch, or Equal—represents differing historical and scholarly geometric models (Tier C).
House Systems & Hemispheric Divisions
Interactive projection comparing Whole Sign (ecliptic-based) with Placidus (time-proportional diurnal quadrant division).
Celestial Sphere Projection & House Cusps
Comparing Hellenistic Whole Sign equal sectors with Placidus quadrant temporal space division across Horizon and Meridian axes. • Modeled after 16th-century European brass astrolabe horizon plates (Arsenius / Cole tradition)
(LAT / LONG) — Local Geocentric Topocentric Origin
The Twelve Classical House Domains
From the eastern dawn of the 1st House to the deep nocturnal culmination of the 12th House.
Self, Vitality & Appearance
Vita (Life)The eastern dawn; physical embodiment, persona, constitutional vitality, and primal awareness.
Values, Resources & Possessions
Lucrum (Wealth)Tangible livelihood, material sustenance, self-worth, and portable personal assets.
Communication, Kin & Locality
Fratres (Brothers)Immediate environment, siblings, short journeys, daily intellect, and observational reasoning.
Home, Ancestry & Foundations
Genitor (Parent)The subterranean meridian (IC); domestic roots, ancestral lineage, private sanctuary, and final resting place.
Creativity, Pleasure & Expression
Nati (Children)Spontaneous joy, creative fertility, celebration, romance, speculation, and progeny.
Daily Work, Service & Bodily Care
Valetudo (Health)Daily labor, service, bodily maintenance, somatic adaptation, and routine craftsmanship.
Partnership, Contracts & The Other
Uxor (Spouse)The western setting horizon (Descendant); one-on-one relationships, contractual alliances, and open adversaries.
Shared Resources & Transformation
Mors (Death)Interlocking obligations, shared assets, psychological catharsis, inheritances, and metamorphosis.
Philosophy, Higher Study & Pilgrimage
Iter (Journey)Long journeys, cosmic philosophy, jurisprudence, divinatory insight, and higher education.
Vocation, Honor & Public Standing
Regnum (Kingdom)The culminating midheaven (MC); public standing, professional mastery, sovereignty, and visible accomplishments.
Community, Alliances & Aspiration
Benefacta (Good Deeds)The Good Spirit (Bonus Daemon); collectives, patrons, shared visionary aspirations, and reciprocal alliances.
Unconscious, Solitude & Transcendence
Carcer (Prison)The Evil Spirit (Malus Daemon); unseen realms, isolation, institutional retreat, karmic patterns, and spiritual dissolution.
The Four Cardinal Angles (Cardines)
The foundational cross of matter grounding the celestial sphere into physical reality.
- Ascendant (ASC / 1st House Cusp): The eastern horizon degree rising at the exact moment of birth.
- Midheaven (MC / Medium Coeli / 10th House Cusp): The culminating degree where the local meridian intersects the ecliptic.
- Descendant (DSC / 7th House Cusp): The western setting horizon opposite the Ascendant.
- Imum Coeli (IC / 4th House Cusp): The northern nadir below the earth opposite the Midheaven.
Classical & Quadrant House Systems
Understanding the geometric philosophy behind Placidus, Whole Sign, Koch, and Equal house division.
Evergreen Astrological Pathways & Foundations
Explore interconnected celestial mechanics: houses, planetary cycles, sacred geometry, classical dignities, and live ephemerides.
Planetary Bodies & Ephemeris
Orbital cycles, diurnal velocities, and planetary archetypes.
Aspects & Sacred Geometry
Harmonic polygons, Ptolemaic aspects, and orb dynamics.
Essential Dignities Matrix
Ptolemaic rulerships, exaltations, and Lilly scoring.
Daily Planetary Overview
Live VSOP87 cosmic weather, Moon ingress, and daily markers.
Four Elements & Triplicities
Aristotelian qualities, humoral balances, and zodiacal triplicities.
Natal Birth Chart
Calculate exact house cusps and planetary degrees with privacy.
My Sky Daily Oasis
Personalized transit radar and private contemplative habit loop.
Historical Epistemology & Primary Sources
- Claudius Ptolemy, Tetrabiblos (c. 150 CE), Book III on the Cardinal Centers and Horizon Divisions.
- Vettius Valens, Anthologies (c. 175 CE), Book II & III on the Twelve Places (Dodekatropos) and Planetary Joys.
- Firmicus Maternus, Matheseos Libri VIII (c. 334 CE), Book II on House Significations and Angles.
- Placidus de Titis, Physiomathematica (1657), Semi-diurnal quadrant trisection algorithm.