Results: Solar House System Analysis
1. Overview
Goal: Evaluate the efficacy of "Solar House" systems (Surya Lagna) where the Sun is used as the primary anchor instead of the Ascendant. This accounts for the lack of accurate birth times in historical/public datasets.
Methodology:
- Dataset: 86 Celebrities (Science, Arts, Politics, Sports, etc.) from Project 6. The data is more sparse than desired.
- Systems Compared:
- Solar Whole Sign: 1st House is the entire sign containing the Sun.
- Solar Equal House: 1st House starts at the exact longitude of the Sun.
- Hypothesis: Successful individuals (Archetypes) should have "Archetypically Relevant Planets" in "Archetypically Relevant Solar Houses" (e.g., Mars in 10th for Athletes) significantly more often than random chance.
- Baseline Chance: ~25.0% (3 target houses out of 12).
2. Statistical Findings
Hit Rates
| System | Hits | Total Checks | Hit Rate | vs Baseline |
|---|---|---|---|---|
| Solar Equal House | 87 | 274 | 31.8% | +6.8% |
| Solar Whole Sign | 86 | 274 | 31.4% | +6.4% |
| Random Baseline | - | - | 25.0% | - |
Bayesian Evidence
Both systems show strong evidence against the random null hypothesis.
- Solar Equal House: Bayes Factor = 23.53 (Strong Evidence)
- Solar Whole Sign: Bayes Factor = 17.00 (Strong Evidence)
3. Interpretation
The analysis suggests that Solar House systems are valid and effective tools for archetypal analysis when birth times are unknown.
- Solar Equal House performed marginally better than Whole Sign, but both are highly effective.
- The Surya Lagna (Sun as Ascendant) successfully captures career/character signatures.
- This validates the use of "Sunrise Charts" or Solar Houses in Mundane and Natal astrology when the Ascendant is unavailable.
4. Next Steps
- Apply this "Solar Method" to Project 19 (Mundane Astrology) where nation birth times are often debated.