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Chart facts
Date, time, and place resolve to historical local time, coordinates, UTC, and astronomical positions.
Methodology
Wonder needs
a clear foundation.
Aster is designed around a simple boundary: calculation determines chart facts; interpretation explains them. Language never gets to invent the sky.
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Interpretation rules
Reviewed rules weigh angles, rulers, aspects, orbs, houses, and relevant timing — without inventing facts.
Aa
Clear language
Structured facts become readable, reflective guidance using cautious language rather than certainty.
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Visible evidence
Important insights show the placements and relationships that led to them, so the reasoning can be inspected.
Production standard
What a real release must record.
- Ephemeris and timezone-data versions
- House system and node method
- Aspect types and orb table
- Rule-engine and interpretation versions
- Calculation time and unknown-time status
- Prompt and model metadata, where used
An honest unknown
No birth time means no angles or houses.
Sun, Moon, and planetary positions can still be useful. Rising, Midheaven, and house interpretations remain hidden until a reliable time is provided.
Local demo status
This is the product experience, not the calculation engine.
The placements shown here are representative sample data. A production implementation still requires licensed ephemeris software, historical IANA timezone handling, a reviewed methodology specification, and golden-chart QA across locations and edge cases.
Explore the sample profile ↗