Python calculations for the position of the sun and moon.

Astro: Go Library for Astronomy Algorithms - Chinese Lunar Calendar Conversion, Planet Positions, Sunrise/Sunset, Moon Rise/Set in Go (天文算法 Go 库：公农历转换、行星位置、日出日落、月升月落)

World Map and Clock

Daylight - is a tiny JavaScript library for basic sun/moon position/times/phase calculations.

MoonKit is a Swift library which uses math and trigonometry to compute several information about the Moon.

MySQL/MariaDB astronomical function

Get sun/moon rise and set times and current progress from sun/moon rise and set

SolarCalculator helps photographers optimize their shoots by providing sunrise and sunset times for both the Sun and Moon (referred to as Phasetime). It uses user-provided or GPS location data to calculate these times and offers quick access to saved locations. The app supports planning around the Golden Hour for perfect lighting.