Azimuths run anticlockwise. North is 0.
Azimuths run clockwise. South is 0.
|Equation of Time|
|Solar → Clock|
|Noon Equation of Time|
|Sunrise on clock|
|Sunrise Hour Angle|
|Sunrise compass point|
|Sunset on clock|
|Sunset Hour Angle|
|Sunset compass point|
Convert solar time to clock time by adding the increment shown (add negative is subtract).
Solar altitude, and rise and set times are adjusted for atmospheric refraction. Compass points are within ±11¼°.
Written by Steve Lelievre using calculations from Jean Meeus' Astronomical Algorithms and refraction formulae found on the NOAA website. For interest only, not to be relied on as correct.
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