Sub-arcsecond-accurate ephemerides.
Why 0.0001° is our threshold, what we diff against Solar Fire / Kepler / NASA, and where the actual bugs hide.
2 articles in this category updated when the work is done · no padding
How Accurate Is the Swiss Ephemeris? Verified Benchmarks
Swiss Ephemeris accuracy in numbers — planetary positions under 0.1 arcsecond, exact house cusps, eclipses within a minute — and how AstroWay verifies it.
Swiss Ephemeris: REST API vs pyswisseph (When to Use Which)
pyswisseph vs a REST API for Swiss Ephemeris calculations — C dependencies, data files, licensing and deployment compared, with a decision guide.
AWAstroWay team
↗ read post // build with this
Same Swiss Ephemeris as Solar Fire — but in 4 lines of code.
Free key, no card. 5,000 calls/month before you pay anything.