Python astronomy with bundled DE442-derived data (~0.001 arcsec typical OPM2 reconstruction difference from source). Powered by Taiyin C++: planets, stars, eclipses, events, Chinese calendars and astrology; optional BaZi and Ziwei Doushu packages.
A high-precision JavaScript wrapper for the Swiss Ephemeris WebAssembly module, providing professional-grade astronomical calculations for astrology, astronomy, and related applications.