Formula for calculating the height of the sun at noon?

Taking Beijing as an imaginary place, the Beijing area is located at 40 north latitude. The formula for calculating the noon sun height is: noon sun height = 90-| local geographical latitude-the latitude of the sun's direct point at this time.

In winter solstice, the direct sunlight is 23 26', and the noon sun height in Beijing is 90-| 40-(-23 26') | = 26 34'.

The direct sunlight in summer solstice is 23 26 ′ n, and the noon sun height in Beijing is 90-| 40-23 26 ′| = 73 26 ′.

In the spring and autumn, the sun shines directly at the equator 0, and the height of the sun at noon in Beijing on that day is 90-| 40-0 | = 50.

At noon, the altitude angle of the sun is 12, which is the angle between the sun's rays and the ground.

Extended data:

The winter solstice is a very important solar term, and it is also a traditional festival in China's lunar calendar. Up to now, there are still many places where the winter solstice festival is held. The winter solstice is commonly known as "Winter Festival", "Dragon Solstice Festival" and "Asian New Year Festival". As early as 2500 years ago, during the Spring and Autumn Period, China had determined the winter solstice by observing the sun through the soil return, which was the earliest of the 24 solar terms. The time is between February 22nd and 23rd of Gregorian calendar 12.