MUL.APIN: Sexagesimal Star Paths and the 360-Day Proto-Astronomical Coordinate System — E8 Intelligence Research

FINDING: MUL.APIN is the earliest systematic star catalogue, organizing stars into three parallel "paths" (Anu, Enlil, Ea) with heliacal rising dates and a 360-day ideal year — a proto-astronomical coordinate system. | MATH: The catalogue encodes a **base-60** sexagesimal framework: 360 days = 6×60, 12 months = 12×30, and stars are grouped into 3 paths × 12 months = 36 decans (each 10° of the ecliptic). Heliacal risings are tabulated at intervals of 10 days (1/36 of the year), implying a **10° ecliptic grid**. The text also lists **ziqpu stars** (culminating stars) with meridian transits spaced at 30-day intervals — a primitive right-ascension ladder. | CONNECTION: The 3-path division mirrors the **triangular lattice** of the ecliptic's threefold symmetry (120° separations), and the 36 decans × 10° = 360° circle is the **root system of A₂** (hexagonal lattice) projected onto the zodiac. The 30-day month × 12 = 360 directly yields the **sexagesimal ratio 1/6, 1/12, 1/36** — all powers o Author: Andrew Stewart Caldin, Independent Researcher, UK. Part of the E8 Intelligence Research series. Platform: e8intelligence.com