✶ Grand Trine

Building Blocks/Aspects/Patterns/Grand Trine.md

aspects · aspects/patterns · AstrologyArithetic

✶ Grand Trine

Subfolder of: Aspect Patterns · Aspects

Definition: Three bodies each trine the other two, forming an equilateral triangle; usually all in one element.

📐 Geometry

• a Trine b, b Trine c, c Trine a

Arithmetic test: Bodies near λ, λ+120, λ+240; name the element (fire/earth/air/water Grand Trine). Every leg must be within its own aspect orb (see the linked aspect notes).

🧭 Reading (modern Western usage)

In modern practice this configuration is read as easy circulation of talent within one element; can indicate complacency unless activated by a square or opposition. Within Astrology Arith(m)etic, read each leg with the book method — body × aspect × body, coloured by sign and house — and then read the figure as a whole.

🔗 Used in

• Comprehensive Natal Analysis Instructions
• Aspect Patterns and Configurations (Complete Astrology)

Sources

• Bil Tierney, Dynamics of Aspect Analysis (CRCS, 1983) — aspect configurations
• Robert Hand, Horoscope Symbols (Whitford, 1981) — aspects and configurations
• Claudius Ptolemy, Tetrabiblos (2nd c. CE), Book I — trans. F. E. Robbins, Loeb Classical Library 435 (1940), public-domain text at LacusCurtius: https://penelope.uchicago.edu/Thayer/E/Roman/Texts/Ptolemy/Tetrabiblos/home.html