Richard Alkalurops

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datatypevoid / getMoonPhase.ts

Last active September 11, 2022 15:42 — forked from endel/getMoonPhase.js

Get moon phase by Date, written in TypeScript. Accurate from year 1900 to 2199 inclusive.


	export { EMoonPhase, EMoonPhaseName, MOON_PHASE_NAMES, moonPhase }


	const { round, trunc: truncate } = Math


	enum EMoonPhase {
	New = 0,
	WaxingCrescent,

Dither / moon_phase.js

Created September 17, 2016 10:07

JS function to calculate moon phase

	function moon_phase(date) { // ported from http://www.voidware.com/moon_phase.htm
	var year = date.getYear(),
	month = date.getMonth(),
	day = date.getDay();

	if (month < 3) {
	year--;
	month += 12;
	}

endel / getMoonPhase.js

Created March 25, 2015 16:04

Get Moon Phase by Date, written in JavaScript

	/*
	* modified from http://www.voidware.com/moon_phase.htm
	*/

	function getMoonPhase(year, month, day)
	{
	var c = e = jd = b = 0;

	if (month < 3) {
	year--;