What is the solar altitude angle on the winter solstice in Xi'an? Is it okay to start construction the day before the winter solstice in 2020?

What is the solar altitude angle on the winter solstice in Xi'an? Is it okay to start construction the day before the winter solstice in 2020?
Introduction: Different regions have different latitudes, which leads to differences in the solar altitude angle on the winter solstice. So [What is the solar altitude angle on the winter solstice in Xi'an? Is it a good idea to break ground the day before the 2020 winter solstice?] Follow the editor to find out! When the Lesser Cold arrives, the weather has entered a stage where it is gradually getting colder but not yet very cold. Mr. Shui Mo will be with you in this November of the lunar calendar in 2020.

What is the solar altitude angle on the winter solstice in Xi'an?

The solar altitude angle refers to the angle between the incident direction of sunlight and the horizon at a certain location on the earth.
Professionally speaking, the solar altitude angle refers to the angle between the sunlight at a certain place and the surface section connecting that place to the center of the earth.
When the solar altitude angle is 90°, the solar radiation intensity is the highest; the greater the degree to which the sun obliquely shines on the ground (that is, the smaller the solar altitude angle), the smaller the solar radiation intensity.
By checking the latitude of Xi'an, we can know that it is between 33°42′ and 34°45′ north latitude. Substituting it into the formula, we can know that the solar altitude angle on the winter solstice in Xi'an is between 33 degrees 32 minutes and 32 degrees 29 minutes.

Is it okay to break ground the day before the winter solstice in 2020?

Lunar calendar: November 6, 2020 Gregorian calendar: December 20, 2020, Sunday, Sagittarius [Suitable for today's almanac] [Do not use it for major events on the day of the four departures] Marry, move, receive money, make stoves, fast and offer sacrifices, pray for money, open warehouses, catch, plant, and go to school [Taboo for today's almanac] [Do not use it for major events on the day of the four departures] Repair graves, bury, install beds, cut wood, raise beams, receive livestock, offer sacrifices, pray for blessings, build houses, build bridges, build embankments, break ground, hold funerals, receive betrothal gifts, move into homes, break ground, start drilling, travel, meridians, and open markets
——Based on the information from the old almanac, the day before the winter solstice in 2020 belongs to the four separation days, so it is not suitable to break ground the day before the winter solstice in 2020!

The custom of eating glutinous rice during the winter solstice

In the southern region, there is a custom of the family gathering together to eat red bean glutinous rice on the night of the winter solstice.
According to legend, Gonggong had an incompetent son who committed many evil deeds. He died on the day of the winter solstice. After his death, he turned into a plague ghost and continued to harm the people.
However, this plague ghost is most afraid of red beans. Therefore, people cook and eat red bean rice on the day of the winter solstice to drive away the plague ghost and prevent disasters and diseases.

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