Fixed Stars Natal Interpretation
Overview
This project investigates the influence of major fixed stars in natal astrology using a continuous intensity weighting system rather than binary "orb" cutoffs. By using trigonometric similarity, we can quantify the exact "strength" of a planetary contact to a fixed star.
Methodology: Cosine Intensity
Traditional astrological analysis often uses a hard binary cutoff (e.g., "Is the planet within 2 degrees? Yes/No"). This project replaces that approach with a Cosine Similarity metric, which provides a continuous measure of alignment precision.
The Algorithm
For every planet in a birth chart and every fixed star:
- Calculate the angular difference: $ \delta = |\theta_{planet} - \theta_{star}| $
- Calculate Intensity: $ \text{Intensity} = \cos(\delta) $
This yields a value where:
- 1.0: Perfect exact conjunction (0° difference).
- ~0.999: Conjunction within ~2.5°.
- < 0.9: Wide or irrelevant aspects.
We apply a high-pass filter (minimum threshold) to filter out noise, but the final analysis sums these cosine values to determine the "Total Intensity" of a star's influence on a group, rather than just counting occurrences.
Scope
- Planets Analyzed: Sun, Moon, Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto, North Node (Rahu), South Node (Ketu).
- Fixed Stars:
- Algol (26° Taurus): "The Demon Star". Associated with intense passion, dramatic turns of fate, and raw female power.
- Aldebaran (9° Gemini): "Eye of the Bull" (Royal Star). Associated with integrity, honor, moral courage, and public success.
- Rigel (16° Gemini): "Foot of Orion". Associated with technical skill, education, wealth, and bringing knowledge to others.
- Capella (21° Gemini): "The Little She-Goat". Associated with curiosity, speed, freedom, and domestic happiness.
- Sirius (14° Cancer): "The Dog Star" (Brightest Star). Associated with mundane fame, burning ambition, and great creative or protective power.
- Regulus (29° Leo/0° Virgo): "Heart of the Lion" (Royal Star). Associated with nobility, ambition, power, and leadership, but warns against revenge.
- Spica (23° Libra): "The Ear of Wheat". Associated with brilliance, artistic gifts, unearned success, and protection.
- Antares (9° Sagittarius): "Heart of the Scorpion" (Royal Star). Associated with intensity, obsession, strategic prowess, and transformative crises.
- Vega (15° Capricorn): "The Falling Eagle". Associated with charismatic, magical, or artistic influence, often in a grand style.
- Altair (1° Aquarius): "The Flying Eagle". Associated with boldness, risk-taking, commercial success, and climbing to heights.
- Fomalhaut (3° Pisces): "Mouth of the Fish" (Royal Star). Associated with magic, spirituality, dreams, and ideals that may clash with reality.
- Deneb (5° Pisces): "Tail of the Swan". Associated with learning, genius, and successful leadership through intellect.
Data
The project uses a dataset of approximately 900+ public figures (celebrity_data.csv). The "Cause" or "Category" column is used to group individuals (e.g., Politicians, Musicians, Scientists) to analyze which stars are most "intense" for specific fields.
Scripts
-
analysis.py:- Loads
celebrity_data.csv. - Calculates planetary positions using the Swiss Ephemeris (
swisseph). - Computes the Cosine Intensity for every planet-star pair.
- Aggregates data by Star, Planet, and Category.
- Outputs
detailed_conjunctions.csvcontaining the raw cosine scores.
- Loads
-
visualize_results.py:- Reads
detailed_conjunctions.csv. - Generates heatmaps and charts based on the summed intensity scores.
- Reads
Visualizations
-
heatmap_star_planet.png: Heatmap showing which planets trigger specific stars most intensely across the population. -
heatmap_category_star.png: Heatmap correlating professional categories with specific fixed stars. -
star_orb_tightness.png: Bar chart displaying the average precision (mean cosine) of meaningful contacts for each star.
References
- Constellation of Words - Comprehensive resource on fixed stars and constellations.
- Astrology King: Fixed Stars - Detailed interpretations of star conjunctions.
- Skyscript: The Fixed Stars - Classical astrological texts and star lists.
- Bernadette Brady, Brady's Book of Fixed Stars, Weiser Books.
- Vivian Robson, The Fixed Stars and Constellations in Astrology.
Data Provenance
Fixed Stars
- Source: Astro-Databank (Notable People).
- Star Catalog: Yale Bright Star Catalog (via Swiss Ephemeris).