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Determine the month and day when the Sun is at minimum altitude for an observer in...

Determine the month and day when the Sun is at minimum altitude for an observer in Washington, D.C. (39°N). What is the altitude of the Sun at this time?

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Answer #1

sun will have minimum altitude in winter solstice. Probably, on 22nd December

On this day, sun is at an angle 23.5

so,

zenith = 39 - 23. 5 = 15.5o

Altitude which sun reaches on this day is

90 - 39 - 23.5 = 27.5o

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