Topocentric Primary Directions Truth Card

Historical Name

• Topocentric
• often tied to the Polich-Page / Marr family of topocentric primary directions

Mathematical Basis

• under-the-pole primary-direction family
• distinct pole law:
  • tan(pole) = (MD / SA) * tan(geographic_latitude)
• then uses the same under-the-pole OA/OD difference structure:
  • compute the significator pole
  • compute ascensional difference under that pole
  • derive OA/OD and measure the directional arc on the equator

Interpretive Meaning

• perfection through a topocentric significator-pole doctrine
• historically important in modern rectification and predictive practice

Current Moira Admission

• admitted as a narrow explicit branch
• runtime-selectable on:
  • in_mundo
  • in_zodiaco
• active relation policy on the plain positional branches:
  • conjunction
  • opposition
• active relation policy on explicit zodiacal aspect-point branches:
  • conjunction
  • opposition
  • zodiacal_aspect
• currently admitted on the existing target family:
  • planets
  • nodes
  • angles
  • house cusps
  • explicit zodiacal aspect-points

Boundary

• this is not yet the whole topocentric predictive family
• broader topocentric service-layer usage, additional key regimes, and wider target doctrine remain separate work

Epistemic Status

• verified narrow admission