Moira is an open-source, astronomy-first ephemeris engine built on JPL DE441 and IAU standards. Your donation helps cover server costs, kernel storage, and continued development.
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DE441 Ephemeris
11,000-year JPL kernel coverage
C++17 Core
IAU 2000A/2006 precision pipeline
Open Source
MIT licensed, free forever
129+ Endpoints
Charts, transits, synastry & more
Moira is built and maintained by a single developer. Every donation, no matter the size, directly funds server infrastructure, ephemeris kernel storage (3.1 GB DE441), and new feature development.