Your question: How do you calculate winter sun angle?

How do you find the angle of the sun on the winter solstice?

At the winter solstice, the sun is 23.5(degrees) south of the equator, so the sun angle is -23.5(degrees). At Chicago, 42(degrees) north latitude, the equation for the winter solstice is: 90 – 42 – 23.5 = 24.5(degrees) above the horizon. At the summer solstice, 90 – 42 + 23.5 = 71.5(degrees).

How do you find the winter solstice?

In simple English, draw a circle on the ground and plant a gnomon stick in the center. Beginning some days before the winter solstice, mark the length of the midday shadow relative to the circle. Repeat on each sunny day. When the shadow stops lengthening and begins to shorten, you’ve found the winter solstice.

How is the winter solstice calculated?

This means the sunrise on the summer solstice (June 21) is at 30 degrees north of east and the sunrise at the winter solstice (December 21) is 30 degrees south of due east. The offset from due east also applies at sunset from due west. The formula is sin(offset) = sin(declination)/cos(latitude).

How is Equinox calculated?

How to calculate the first day of the Spring Equinox period. Example: The first day of the Spring Equinox in 2092 =[92×. 0.2422+20.646]-[92/4]=42-23=19, so the Spring Equinox starts on March 19th. Exceptions: For 2084, add one to the calculated result.

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How do I find the solstice?

A solstice is an event that occurs when the Sun appears to reach its most northerly or southerly excursion relative to the celestial equator on the celestial sphere. Two solstices occur annually, around June 21 and December 21.


event month 2021
solstice June 03:32
equinox September 22
solstice December 21

How do you find the solstice?

On our planet, solstices are defined by solar declination—the latitude of the Earth where the sun is directly overhead at noon. On Earth, solstices are twice-yearly phenomena in which solar declination reaches the Tropic of Cancer in the north and the Tropic of Capricorn in the south.

Where is the sun at 90 degrees?

For example, at the summer solstice, the Northern Hemisphere faces the sun at maximum tilt, so the sun’s rays strike 23.5 degrees north latitude — the Tropic of Cancer — at a 90 degree angle.