1. Validate time and place
Birth inputs are normalized, a verified location supplies coordinates and historical timezone, and the local moment is converted to UTC. The source and uncertainty of the time remain attached.
Calculation before interpretation
Know what is measured, inferred, and deliberately refused.
Northgleam separates astronomical calculation, astrology rules, AI writing, safety review, and user choice. The interface keeps those layers inspectable.
The pipeline
Five boundaries create trust.
The language model is never the source of planetary truth.
2. Calculate the chart
Astronomy Engine computes Sun, Moon, and planetary positions. Application code derives tropical signs, mean lunar nodes, Whole Sign houses, angles, aspect orbs, lunar phase, and chart balance.
3. Select relevant evidence
For daily readings, current positions are compared with natal factors and ranked by closeness, duration, speed, and structural relevance. Unknown-time profiles cannot produce angle or house evidence.
4. Interpret through constrained roles
Low-cost models handle daily drafting and risk classification. Premium reports can use an analyst, a writer, and a reviewer. Structured JSON requires evidence, practical experiments, and a disclaimer.
5. Refuse unsupported authority
Medical, legal, financial, crisis, abuse, death, self-harm, violence, guaranteed event, and third-party mind-reading requests are redirected. The final decision remains with the user and real-world evidence.
Inspectability
What each reading stores.
Chart evidence
Exact factors, orbs, settings, and time-confidence flags used by the interpretation.
Model provenance
Model slug, prompt version, generation status, and estimated token cost for administration.
Review state
Risk category, fallback behavior, content status, and a user-report path.
Scientific boundary
Planetary calculations can be precise while astrological meanings remain symbolic and not scientifically validated as reliable fate prediction. Northgleam does not market interpretation as scientific proof.
Begin privately
See the method working on your own chart.
The free experience exposes placements and aspects before asking you to trust the prose.