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Meteorology - Solarcalculator

NOAA Solar Calculator

The equations used in the solar calculator are based on 'Astronomical Algorithms' by Jean Meeus. For more information about NOAA's Solar Calculator go to NOAA's Website.
Variables include:
Date, Time (past local midnight), Julian Day, Julian Century, Geom Mean Long Sun (deg), Geom Mean Anom Sun (deg), Eccent Earth Orbit, Sun Eq of Ctr, Sun True Long (deg), Sun True Anom (deg), Sun Rad Vector (AUs), Sun App Long (deg), Mean Obliq Ecliptic (deg), Obliq Corr (deg), Sun Rt Ascen (deg), Sun Declin (deg),var y, Eq of Time (minutes), HA Sunrise (deg), Solar Noon (LST), Sunrise Time (LST),Sunset Time (LST), Sunlight Duration (minutes), True Solar Time (min), Hour Angle (deg), Solar Zenith Angle (deg), Solar Elevation Angle (deg), Approx Atmospheric Refraction (deg), Solar Elevation corrected for atm refraction (deg), Solar Azimuth Angle (deg cw from N)