Lines Matching refs:evection
1088 // Evection: the sun's gravity affects the moon's eccentricity
1092 double evection = 1.2739*PI/180 * ::sin(2 * (meanLongitude - sunLongitude)
1097 meanAnomalyMoon += evection - annual - a3;
1110 moonLongitude = meanLongitude + evection + center - annual + a4;
