Slide 1

Basic Earth-Sun Angle

Solar AnglesDescribe the sun position relative to a vertical surface

Earth Angle1.Angle of Latitude ()2.Declination ()3.Hour Angle ()

2.Declination ()

3.Hour Angle ()

Sun Angle

Surface Angle1.Surface Azimuth Angle ()2.Tilt Angle or Slope ()3. Angle of Incidence ()