Roho calculation and interpretation methodology

A chart begins with an explicit moment, geographic coordinates, historical time-zone handling, and a stated level of time precision. When birth time is unknown, Roho should not invent angles or houses that depend on an exact local horizon.

Planetary positions and chart geometry are produced by the calculation service using the configured ephemeris and declared chart system. The result—not a language model—supplies positions, motion, houses, angles, aspects, dignities, and other supported facts.

Calculation settings must remain visible and internally consistent. Tropical and sidereal reference systems, ayanāṃśa, node mode, and house system are not interchangeable labels.

Interpretive systems receive a structured fact set. They may explain those facts in ordinary language but may not add placements, aspects, timings, dignities, or events that are absent from the calculation record. Where the configured corpus has no rule, the system should not fabricate one.

Horary uses the documented question moment and place and applies the selected tradition’s rule set. Daily sign content should derive from one verified daily sky state and then map that state consistently through each sign’s framework.

Astrological interpretation is provided for education and reflection. Calculations can be reproducible while interpretation remains tradition-dependent and uncertain. Roho should state limitations instead of converting ambiguity into certainty.