4. Modeling sun position and sky types
4.1 Sun position
The sun's position on the celestial vault depends on latitude, day of the year and time of day. Its position is characterized by the sun's azimuth (angle to the south) and height (angle to the horizon) – see figure 15 .
For a latitude LAT, the solar height H is defined by :
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Modeling sun position and sky types
Bibliography
Standards and norms
EN 17037: 2018 "Daylighting in buildings".
EN 12464-1 – 2011 – Workplace lighting – Part 1: Indoor workplaces
Directory
Databases and calculation software (non-exhaustive list)
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Agi32
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DALEC
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Daylight Visualizer
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