What does the summer solstice solar term mean?

Summer solstice is one of the 24 solar terms. After the summer solstice, the climate will get hot and the light will get stronger. This is a typical sauna day, so we should pay attention to heatstroke prevention and sun protection in health care. Go to bed late and get up early every day, and take a proper lunch break. Although the weather is not ideal, what is the significance of the summer solstice solar terms?

What does the summer solstice solar term mean?

The summer solstice solar term means the longest day of the year. Summer solstice is one of the earliest solar terms among the 24 solar terms. Every year on June 2 1 or 22 of Gregorian calendar, when the sun reaches 90 degrees of the yellow meridian, it is the summer solstice. "Solstice" means "extreme", and the summer solstice is also called "long days". After the summer solstice, the direct point of the sun gradually moves southward, and the days in the northern hemisphere will be shorter and the nights will be longer.

The summer solstice is the northernmost day of the sun in a year, the longest sunshine day in the northern hemisphere, and the longest day that lasts longer than the night. However, the long days in various places show a decreasing trend from north to south. This is because the days are long and the nights are short caused by the tilt of the earth's rotation axis, and the closer it is to the two levels, the more obvious it is.

The ancients said: the days are long, the shadows are short and extremely extreme, so it is called the summer solstice. On the day of the summer solstice, the sun goes directly to the northern hemisphere and reaches the northernmost point of the year, on the tropic of cancer (23 27' north latitude). On this day, the sun in the northern hemisphere has the largest altitude angle, the shortest shadow, the longest day and the shortest night. The farther north, the longer the days.