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At what average angle does the sun light fall on the earth surface at 26.5 degree South?
Wiki User
∙ 15y ago
The "average" declination of the Sun throughout the year is zero; half the time it is above the equator and half the time it is below.
So the average noontime solar altitude angle is 63.5 degrees; 90 minus your latitude.
But if you are looking for the 24hour average, then the number is 1/4 of that.
Half the time, the Sun is below the horizon and not visible. I'll count that as zero, because we cannot measure the angle below the horizon - although we can calculate it.
Of the daytime half, the Sun's elevation starts at zero and rises to the noontime angle, and then sets to zero.
So the 24 hour average is one quarter of 63.5 degrees, or 15.87 degrees.
Wiki User
∙ 15y ago
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