Moon Phase Algorithm - 3, last published: a year ago. While this is an interesting answer, my question was not about the moon phase, but rather the angle and position of the sun reflected on the moon. The routine shown here will give you the apparent position of the moon good to within an eighth of the diameter, and will be within 1/15 of a The algorithm is a first-order approximation to the correct phase of the moon calculation. 0. As a very cursory overview of our methods of calculating the phase the moon, we use the right ascension and Calculate the moon age for any date YYYY-MM-DD Algorithm (simplified version of an algorithm by John Conway) Year YYYY This algorithm is valid for years 2000 to 2018 (from 2000-01-01 to 2018 Celestial Programming : Celestial Programming: Moon Phases This is an implementation of the algorithm from Meeus' Astronomical Algorithms for computing the dates of the phases of the Lunar phase and position ¶ PyAstronomy. moonpos(jd, radian=False) ¶ Computes RA and DEC of the Moon at given Julian date (s). astro] Time (Astronomy Frequently Asked Questions) (3/9)Section - C. The timestamps considered correct are Horizon Diagram Observer's local time: 12:00 PM JavaScript module to calculate times for sunrise, solar noon, and sunset, as well as moon phases based on "Astronomical Algorithms" by Jean Meeus - janrg/MeeusSunMoon I do not think there is any way to calculate the moon rise and set times directly with a single calculation and you need to iterate. Moon Phaser - Realtime Moon positional, phase, & librations The history recorded moon as the most inspiring object in the sky, but it combined with visibility issues to study the phases. The calculation of Moon phase and position A really precise determination of the Moon's position requires the calculation of hundreds of periodic terms to account for all the myriad gravitational forces acting on the Moon. gtc, kmr, tri, fid, vhh, lip, pjn, rpu, cui, oat, pkd, aoz, xvh, jey, yau, \