Decoding the Antikythera Mechanism's Zodiac Dial and Eclipse Cycles — E8 Intelligence Research

FINDING: The Antikythera Mechanism encodes a lunisolar calendar, eclipse prediction (Saros cycle), and planetary positions via a differential gear system; the arXiv paper details the zodiac dial ring's 360° division into 24° (or 30°) segments with precise placement on the front central dial. | MATH: Saros cycle = 223 synodic months ≈ 6,585.321 days; Metonic cycle = 235 synodic months = 19 tropical years (ratio 235/19 ≈ 12.368); Callippic cycle = 76 years (4×19); Exeligmos = 3×Saros = 19,756 days. Gear ratios: e.g., 64:38 (Sun-Moon differential), 53:96 (Venus), 57:96 (Mars) — all reducible to integer ratios. Zodiac dial: 360° circle, likely 30° per sign, with degree marks (1° per tick) — base-60 subdivision of the circle. | CONNECTION: The 360° circle and 60-minute hour are base-60 (sexagesimal) — directly from Babylonian astronomy. The Saros cycle (223 months) relates to 0.618? No — but 223/360 ≈ 0.6194, strikingly close to the golden ratio conjugate (0.618). Also, 19-year Metonic cycl Author: Andrew Stewart Caldin, Independent Researcher, UK. Part of the E8 Intelligence Research series. Platform: e8intelligence.com

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Publication Details

Journal
Zenodo (CERN European Organization for Nuclear Research)
Published
2026-09-12
DOI
https://doi.org/10.5281/zenodo.22719893
Primary Topic
Historical Astronomy and Related Studies
Type
preprint
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Decoding the Antikythera Mechanism's Zodiac Dial and Eclipse Cycles — E8 Intelligence Research

Andrew Stewart Caldin
Zenodo (CERN European Organization for Nuclear Research)
Historical Astronomy and Related Studies
preprint

Decoding the Antikythera Mechanism's Zodiac Dial and Eclipse Cycles — E8 Intelligence Research

Andrew Stewart Caldin
preprint en

Abstract

FINDING: The Antikythera Mechanism encodes a lunisolar calendar, eclipse prediction (Saros cycle), and planetary positions via a differential gear system; the arXiv paper details the zodiac dial ring's 360° division into 24° (or 30°) segments with precise placement on the front central dial. | MATH: Saros cycle = 223 synodic months ≈ 6,585.321 days; Metonic cycle = 235 synodic months = 19 tropical years (ratio 235/19 ≈ 12.368); Callippic cycle = 76 years (4×19); Exeligmos = 3×Saros = 19,756 days. Gear ratios: e.g., 64:38 (Sun-Moon differential), 53:96 (Venus), 57:96 (Mars) — all reducible to integer ratios. Zodiac dial: 360° circle, likely 30° per sign, with degree marks (1° per tick) — base-60 subdivision of the circle. | CONNECTION: The 360° circle and 60-minute hour are base-60 (sexagesimal) — directly from Babylonian astronomy. The Saros cycle (223 months) relates to 0.618? No — but 223/360 ≈ 0.6194, strikingly close to the golden ratio conjugate (0.618). Also, 19-year Metonic cycl Author: Andrew Stewart Caldin, Independent Researcher, UK. Part of the E8 Intelligence Research series. Platform: e8intelligence.com

Zenodo (CERN European Organization for Nuclear Research)
Historical Astronomy and Related Studies
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