Lines Matching refs:longitude
95 * it takes for the moon to return the same ecliptic longitude as the sun.
96 * It is longer than the sidereal month because the sun's longitude increases
108 * for the moon to return to the same ecliptic longitude relative to the
260 * latitude and longitude. The object's time is set to the current
263 * @param longitude The desired longitude, in <em>degrees</em> east of
273 CalendarAstronomer::CalendarAstronomer(double longitude, double latitude) :
275 fLongitude = normPI(longitude * (double)DEG_RAD);
447 return eclipticToEquatorial(result, ecliptic.longitude, ecliptic.latitude);
453 * @param eclipLong The ecliptic longitude
482 * Convert from ecliptic longitude to equatorial coordinates.
484 * @param eclipLong The ecliptic longitude
531 #define SUN_ETA_G (279.403303 * CalendarAstronomer::PI/180) // Ecliptic longitude at epoch
532 #define SUN_OMEGA_G (282.768422 * CalendarAstronomer::PI/180) // Ecliptic longitude of perigee
547 // * Return the sun's ecliptic longitude at perigee for the current time.
557 // * Return the sun's ecliptic longitude for the current time.
583 * Find the "true anomaly" (longitude) of an object from
587 * @param meanAnomaly The object's longitude calculated as if it were in
593 * @return The true anomaly (longitude) measured in radians
612 * The longitude of the sun at the time specified by this object.
613 * The longitude is measured in radians along the ecliptic
637 /*public*/ void CalendarAstronomer::getSunLongitude(double jDay, double &longitude, double &meanAnomaly)
652 // Now find the "true anomaly", e.g. the real solar longitude
656 longitude = norm2PI(trueAnomaly(meanAnomaly, SUN_E) + SUN_OMEGA_G);
717 * Find the next time at which the sun's ecliptic longitude will have
810 // // 6. Calculate GST at 0h on the observer's longitude
955 // // The Sun's true longitude, slon, can now be computed:
961 // // longitude) to sRA and sDec (the Sun's RA and Dec):
1066 // Calculate the solar longitude. Has the side effect of
1076 // Calculate the mean longitude and anomaly of the moon, based on
1104 // Now find the moon's corrected longitude
1117 // What we've calculated so far is the moon's longitude in the plane
1119 // and longitude. First we need to find the longitude of the ascending
1229 * longitude will have the desired value.
1231 * @param desired The desired longitude.
1471 sprintf(tmp, "[%.5f,%.5f]", longitude*RAD_DEG, latitude*RAD_DEG);
