Function getSolarMeanAnomaly

docs/app/js/sanddance-app.js:95834–95836

(days)

    return DEGREES_TO_RADIANS * (THETA0 + THETA1 * dates) - longitudeWestInRadians;
}
function getSolarMeanAnomaly(days) {
    return DEGREES_TO_RADIANS * (M0 + M1 * days);
}
function getEclipticLongitude(meanAnomaly) {
    var M = meanAnomaly;
    var C = DEGREES_TO_RADIANS * (1.9148 * Math.sin(M) + 0.02 * Math.sin(2 * M) + 0.0003 * Math.sin(3 * M));