Bundle for astronomical calculations such as position of moon, sun and planets, sunrise, sunset or solar eclipses. Most of the calculations are based on Jean Meeus 'Astronomical Algorithms' book and the VSOP87 theory.
Including configurable Stars, Nebulas, Comets, Planets and Suns. Nebula comes with a vanilla JS and a React wrapper. Compatible with SSR
Javascript implementation of Moshier's ephemeris calculations for sun, planets, comets, asteroids and stars.
observerly's lightweight, zero-dependency, type safe astrometry library written in Typescript for calculating the position of celestial objects in the sky.
Toolkit for solar system ephemerides and satellite propagation via SGP4