Software › Back dials — Metonic, Saros & eclipses
Back dials — Metonic, Saros & eclipses
demo Open · freely redistributable
The reconstructed BACK dial of the Antikythera Mechanism. The upper Metonic spiral (5 turns, 235 months = 19 years) and lower Saros spiral (4 turns, 223 months ≈ 18 years) advance as you crank; eclipse cells carry computed ☉/☾ glyphs, and the Callippic (76 yr), Exeligmos (3 Saros) and Games/Olympiad (4 yr) subsidiary dials turn with them. Same original gear model as the front view, opened to the back face by default.
Not hosted here.
Format: JavaScript gear-train model · By: emulators.org · Licence: Public domain (CC0)