What does long summer mean?

Long summer is one of the 24 solar terms. Long summer is the seventh of the 24 solar terms and the first solar term in summer, which indicates the official start of summer. Example: "cuckoo cuckoo!" I sang in changxia, and I sang xiaoman. The bucket refers to the southeast, and the dimension is long in summer. Everything has grown to this day, hence the name Long Summer. The "constant gas method" takes the long summer solar term when the sun reaches 45 degrees of the yellow meridian.

The origin of long summer solar terms

Twenty-four solar terms, a special festival in the trunk and branch calendars, indicate the change of natural rhythm and establish "December construction" (festival). It was originally formulated on the basis of "shifting stars". When the bucket handle of the Big Dipper points to the southeast, it is long summer. Beginning of spring, Changxia, beginning of autumn and beginning of winter represent the beginning and arrival of spring, summer, autumn and winter respectively.

In order to express the characteristics of time series more accurately, the ancients divided the solar terms into four groups according to the weather and phenology: divided, arrived, opened and closed. "Fen" means vernal equinox and autumnal equinox, which was called "dichotomy" in ancient times; "Solstice" is the summer solstice and the winter solstice, which was called "the second solstice" in ancient times.

"Qi" refers to beginning of spring and Changxia, "Closed" refers to beginning of autumn and beginning of winter, and beginning of spring, Changxia, beginning of autumn and beginning of winter are collectively called "Sili", which add up to * * * to "eight sections". Corresponding to the most important "eight festivals" in solar terms, there are also the most important "eight festivals" in folk festivals, namely Shangyuan, Qingming, Long Summer, Dragon Boat Festival, Central Plains, Mid-Autumn Festival, Winter Solstice and New Year's Eve.