resources

What · Why · For whom

Resources core doc for lamma: the building blocks the engine depends on.

Notes

• Ephemeris sources: Swiss Ephemeris (reference implementation to test against), VSOP87 (fallback for long-tolerance work), JPL Horizons (cross-check for spot samples).
• Tolerance notes: target chart placements within 1 arcminute of Swiss Ephemeris for 1950–2050. Reproducibility is part of the tolerance.