IC (Nadir)
IC (Nadir) is the lowest point of the chart, opposite the MC. The point representing roots, home, family, and your most private inner world.
Related Terms
Midheaven (MC)
The highest point of the chart, the middle of the sky. Represents your career purpose, social reputation, and public identity.
Whole Sign Houses
One of the oldest house systems. A simple and effective system where each entire sign corresponds to one house. Common in Hellenistic astrology.
Grand Trine
Three planets forming an equilateral triangle through 120° aspects. Shows areas of natural talent, harmony, and ease.
Placidus House System
The most commonly used house system. House boundaries have unequal degrees and are sensitive to latitude differences.
Grand Cross
Four planets forming a square through 90° and 180° aspects. Carries intense tension and challenge but great transformation potential.
Orb
The acceptable deviation from an aspect's exact degree value. For example, a conjunction with a 5° orb is valid within ±5° of 0°.