Sun–Moon ephemeris, eclipse prediction and lunar observation in a single HTML file (VSOP2013, ELP/MPP02, IAU 2006/2000A, IERS EOP). Offline-capable, installable PWA.
analytics astronomy eclipse astrophysics gaia ephemeris stars janus planets vsop2013 eop skyview hipparcos-catalog iers timescales elpmpp02 sun-moon delta-time ips2000
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Updated
Nov 15, 2026 - HTML