Sun chart

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A Sun chart is a graph of the ecliptic of the Sun through the sky throughout the year at a particular latitude. Most sun charts plot azimuth versus altitude throughout the days of the winter solstice and summer solstice, as well as a number of intervening days. Since the movement of the Sun is symmetrical about the solstice, it is only necessary to plot dates from one half of the year. The graph may show the entire horizon or only the half of the horizon closest to the equator.
A Sun chart is a graph of the ecliptic of the Sun through the sky throughout the year at a particular latitude. Most sun charts plot azimuth versus altitude throughout the days of the winter solstice and summer solstice, as well as a number of intervening days. Since the movement of the Sun is symmetrical about the solstice, it is only necessary to plot dates from one half of the year. The graph may show the entire horizon or only the half of the horizon closest to the equator.

A Sun chart is a graph of the ecliptic of the Sun through the sky throughout the year at a particular latitude. Most sun charts plot azimuth versus altitude throughout the days of the winter solstice and summer solstice, as well as a number of intervening days.

Since the movement of the Sun is symmetrical about the solstice, it is only necessary to plot dates from one half of the year.

The graph may show the entire horizon or only the half of the horizon closest to the equator.

Sky view obstructions can be superimposed upon a Sun chart to obtain the insolation of a location.


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