Solar Height
The solar Height is the angle between the direction of the solar rays
and the horizontal plane taken in our case at its peak at noon.
The solar height depends on the latitude of the point where we are and
by the declination thath in turn depends on the day included in the
solar year in which the measurement was made.
Starting from the formula to calculate the solar height I get the
declination ie the angle that forms the sun at noon on the meridian
considered with the equatorial plane which can be positive or negative
depending on the season.
α = 90 ° - latitude +/- declination
α = solar height
Latitude of the pyramid of Cheops is 29 ° 58’40.56 ”, in degrees 29.977
°
Declination = 90 ° - 29.977 ° -51.84 ° = 8.183 °