#sunrise-sunset

High-precision sunrise, sunset, twilight, golden-hour & solar-position calculation for JavaScript / TypeScript. Based on NREL's Solar Position Algorithm (SPA). Zero runtime deps, ESM + CommonJS, native Temporal support.

Astro: Go Astronomy Algorithms Library - Chinese Lunar Calendar, Solar/Lunar Eclipses, Sun/Moon/Planet Positions, Rise/Set, Planet Events, Stars, Coordinates, Orbits, Sundials and Lightweight Ephemerides (天文算法 Go 库：农历、日月食、日月行星位置、升落、行星天象、恒星、坐标、轨道、日晷与轻量星历)