What do you mean by summer, autumn and autumn?

Autumn dew in autumn refers to the four solar terms of beginning of autumn, Chushu, Bailu and Autumnal Equinox.

Beginning of autumn is the first solar term in autumn, which falls on August 7-9 of the Gregorian calendar every year. Autumn begins in the beginning of autumn and ends in beginning of winter, which is the result of celestial movement.

Summer is the second solar term in autumn, which is celebrated every year on August 22-24 in the Gregorian calendar. In summer, it is "going out of summer", which means leaving in the heat. The arrival of the summer heat marks the end of the hot weather, and the summer heat gradually fades, from hot to cold. Due to the influence of short-term reheating weather (commonly known as "autumn tiger"), there is still a continuous high temperature after the summer heat, which is generally cool until after the Millennium.

Millennium is the third solar term in autumn. This solar term marks the end of the Qiu Meng season and the beginning of the Mid-Autumn Festival, which falls from September 7 to 9 on the Gregorian calendar. The Millennium solar terms basically ended the sultry summer, which was the turning point from sultry to cool in autumn.

The autumnal equinox is the fourth solar term in autumn, which usually lasts from September 22nd to September 24th in the Gregorian calendar. After the autumnal equinox, the direct point of the sun continues to move from the equator to the southern hemisphere, and the days are shorter and the nights are longer in all parts of the northern hemisphere, that is, the days are shorter than the nights in a day; The southern hemisphere is the opposite.

Extended data

Two other solar terms in autumn

Cold dew is the fifth solar term in autumn. Gregorian calendar1October 7 -9 10 every year. Cold dew is a solar term reflecting the characteristics of climate change. After the cold dew solar terms, the days become shorter, the nights become longer, the sunshine decreases, the hot air slowly recedes, the cold gradually increases, the temperature difference between day and night is larger, and it feels a little chilly in the morning and evening. From the climate characteristics, in the cold dew season, the autumn in the south is getting stronger, cool and cool, with little rain and dryness; The vast areas in the north have entered or will enter winter from late autumn.

The first frost is the last solar term in autumn. Salary will be paid every year on the Gregorian calendar 10,123-24 October. This is the transition from autumn to winter. The first frost solar terms are characterized by cold weather in the morning and evening, hot weather at noon, large temperature difference between day and night, and obvious autumn dryness. After the first frost, the plants gradually lost their vitality and the land was desolate. The first frost does not mean "frost", but refers to the sudden drop in temperature and the large temperature difference between day and night. After the first frost solar term, the scene of late autumn is obvious, and the cold air goes south more and more frequently.

Baidu Encyclopedia-24 solar term song