Vedākṣha

Integration Guide

Aspects & Patterns

Vedākṣha computes 11 aspect types with configurable orbs, detects applying and separating motion, assigns a strength score to each aspect, and identifies 5 major pattern configurations across the chart.

The 11 Aspect Types

Default orbs are applied per aspect type as shown. All orbs are configurable via AspectConfig.

Aspect
Angle
Default Orb
Type

Conjunction

Planets at the same degree blend their energies completely.

0°
8°
Major

Opposition

Planets face each other across the chart axis.

180°
8°
Major

Trine

Planets in the same element, harmonious flow.

120°
8°
Major

Square

Tension and challenge between the two principles.

90°
7°
Major

Sextile

Opportunity and cooperation between compatible elements.

60°
6°
Major

Quincunx

Adjustment required; the two planets share nothing in modality or element.

150°
3°
Minor

Semi-Sextile

Adjacent signs; subtle friction or resource sharing.

30°
2°
Minor

Semi-Square

Minor irritant, like a Square but lighter.

45°
2°
Minor

Sesquiquadrate

Internal friction, agitation toward resolution.

135°
2°
Minor

Quintile

Creative talent, linked to the 5th harmonic.

72°
1.5°
Minor

Bi-Quintile

Expression of quintile creativity in more complex form.

144°
1.5°
Minor

Finding Aspects

Call find_aspects with a slice of planetary positions. Pass AspectConfig::default() to use standard orbs, or customize per aspect type.

aspects.rs
use vedaksha::prelude::*;

let chart = compute_chart(jd, lat, lon, &ChartConfig::tropical())?;

// Default orbs
let aspects = find_aspects(&chart.planets, &AspectConfig::default())?;

for asp in &aspects {
    println!(
        "{} {} {} — orb {:.2}° {} strength {:.2}",
        asp.body_a,
        asp.aspect_type,
        asp.body_b,
        asp.orb,
        if asp.applying { "applying" } else { "separating" },
        asp.strength,
    );
}
// Venus Trine Mars — orb 1.34° applying  strength 0.83
// Sun   Square Saturn — orb 4.72° separating strength 0.33
custom_orbs.rs
let config = AspectConfig {
    conjunction:    10.0,
    opposition:     10.0,
    trine:           8.0,
    square:          7.0,
    sextile:         5.0,
    quincunx:        3.0,
    // Minor aspects default to 2° if not specified
    ..AspectConfig::default()
};

let aspects = find_aspects(&chart.planets, &config)?;

Applying vs Separating

An aspect is applying when the angular separation between the two planets is moving toward the exact aspect angle, and separating when it is moving away. Applying aspects are generally considered more potent because they represent energy building toward a peak.

Vedākṣha computes application/separation by comparing the current angular separation with the separation one day later (using the planets' speed vectors). Retrograde planets are handled correctly — a retrograde faster planet can be applying to a direct slower planet even if it appears to be moving away in longitude.

Aspect Strength

Each aspect carries a strength score from 0.0 to 1.0. The score is computed using a linear falloff from the exact angle to the edge of the orb: an exact aspect scores 1.0, an aspect at the orb boundary scores 0.0.

strength = 1.0 − (|orb| / max_orb)

// Example: trine with orb = 3.0°, max_orb = 8.0°

// strength = 1.0 − (3.0 / 8.0) = 0.625

Pattern Detection

Pass the computed aspect list to detect_patterns to find composite configurations.

patterns.rs
let aspects  = find_aspects(&chart.planets, &AspectConfig::default())?;
let patterns = detect_patterns(&aspects)?;

for pattern in &patterns {
    println!("{:?} — planets: {:?}", pattern.kind, pattern.bodies);
}
// GrandTrine — planets: [Venus, Mars, Jupiter]
// TSquare    — planets: [Sun, Moon, Saturn]  apex: Saturn

Grand Trine

Three planets each in trine to the other two, forming an equilateral triangle. Fluid, self-contained energy within one element.

T-Square

Two planets in opposition, both squared by a third. Dynamic tension that focuses pressure on the apex planet.

Yod

Two planets in sextile, both quincunx to a third (the apex). A configuration of adjustment and fate.

Grand Cross

Four planets in mutual squares and oppositions, forming a cross. Intense, multi-directional tension that can generate great productivity.

Stellium

Three or more planets within an 8° band. Concentration of energy in one sign or house.

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