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The solar elevation is the measurement of the height (or altitude) of the sun in the sky. The sun rises from the east and reaches its maximum altitude at solar noon. Then, it descends to the west.
Results are given in the following units: Equation of Time in minutes of time; Solar Declination in degrees, with positive to the north; Azimuth in degrees clockwise from north; Elevation in degrees up from the horizon; Cosine of Solar Zenith Angle is unitless.
The solar azimuth angle is the azimuth (horizontal angle with respect to north) of the Sun's position. [1][2][3] This horizontal coordinate defines the Sun 's relative direction along the local horizon, whereas the solar zenith angle (or its complementary angle solar elevation) defines the Sun's apparent altitude.
Calculation of sun’s position in the sky for each location on the earth at any time of day. Azimuth, sunrise sunset noon, daylight and graphs of the solar path. Twilight is the time after sunset characterized by a diffuse light (by extension the morning twilight, use term aurora, dawn or sunrise).
Solar altitude angle (α): It is known also as elevation angle and defined as the angular height of the sun in the sky measured from the horizontal plane. The altitude angle varies from zero degree at sunrise or sunset to 90 degrees when the sun is at the highest point in the sky.
The solar altitude (SA), also called the angle of the noon Sun, represents the elevation of the noon Sun in the sky. Another way of understanding this is to think of the SA as the point at which the Sun is highest in the sky at noon.
Learn to calculate solar altitude using elevation angles. Understand sun's position for various applications. Expert guide.