Is the summer solstice according to the lunar calendar or the solar calendar? Why are the days longer and the nights shorter during the Summer Solstice?
Is the summer solstice according to the lunar calendar or the solar calendar? Why are the days longer and the nights shorter during the Summer Solstice? May is the height of summer, and high temperature is a notable feature of this month. But also because of the high temperature and abundant rainfall, crops have entered a vigorous growth period. So what other relevant knowledge is there in May? Let’s take a look at it on Shuimo.com.Is the summer solstice according to the lunar calendar or the solar calendar?The time of the summer solstice is determined according to the Gregorian calendar. There is a specific formula for calculating the solar term date, and the solar term can also be checked through the lunar calendar. Summer solstice calculation formula: [Y*D + C] - L Formula interpretation: Y=last 2 digits of the year, D=0.2422, L=leap year number, C=21.37 in the 21st century, C=22.20 in the 20th century.Why are the days longer and the nights shorter during the Summer Solstice?From the perspective of the Northern Hemisphere, around the summer solstice, the further north you go (the higher the latitude), the longer the daylight hours and the shorter the night hours. If you look within the Arctic Circle, you can see that the sun shines 24 hours a day. There is no night, only day. Because no matter how the earth rotates, all longitudes are within the daytime hemisphere. This is the polar day. The opposite is true in the Southern Hemisphere. |
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