When is the date of the summer solstice in 2020?
Summer solstice, also known as "summer solstice" and "summer solstice festival" in ancient times. The ancients said: "The days are long, the shadows are short and extremely extreme, so it is called the summer solstice." It is not only one of the 24 solar terms, but also a festival in the ancient folk "four seasons and eight festivals". Since ancient times, there has been a custom of offering sacrifices to gods and ancestors on the summer solstice in order to pray for disaster relief and bumper harvest. When the sun moves to 90 degrees of the yellow meridian, it is the intersection of the summer solstice, which is nearly twice as much as the summer solstice in the southern hemisphere of the solar calendar.
The summer solstice is the northernmost day of the sun in a year and the limit of the sun's northward movement. The summer solstice is the turning point of the sun. After this day, it went back, and the direct sunlight point began to move south from the Tropic of Cancer (23 26' north latitude), and the days in the northern hemisphere became shorter day by day.
After the summer solstice, the noonday sun altitude angle began to decrease day by day in the Tropic of Cancer and its north area. At the same time, after the arrival of the summer solstice, the stars in the night sky gradually turned into Xia Xing.