#
erfa
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celerity is a lightweight, zero-dependency, research-grade native Python astronomy library for precise astronomical calculations and observation planning, with IAU 2006/2000A precession, nutation and aberration models tested for milliarcsecond-level conformance against ERFA.
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Sep 14, 2026 - Python
Elegant astronomy for TypeScript. Supercharged by Bun.
image typescript astronomy nasa wcs indi firmata vsop87 stacking astrometry fits astrophotography stellarium bun erfa spk plate-solving jpl-horizons ascom-alpaca xisf
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Sep 20, 2026 - TypeScript
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