solar chart or sun path chart
diagram
orthographic projection
stereographic diagram
equidistant chart
how to read the sun path chart?
altitude
zenith
azimuth
sun path
vernal equinox ( march 21)
autumnal equinox ( 23 sep)
summer solstice (21 june)
winter solstice 21 december)
how to calculate the azimuth and altitude?
determine the correct line and time
draw line from the zenith to sun location
determine the altitude
determine the azimuth
latitude
model study with heliodon: several devices developed to simulate the solar geometry and allow the study of shading using buildings models.
case study: selected space for project 01
:
10 am : azimuth 118 ESE, altitude 24, HSA 72, VSA 43
2 pm azimuth 175 S, altitude 62, HSA 15, VSA 56
5 pm azimuth 234 SW, altitude 40, HSA -44, VSA 41