Knowledge about winter solstice knowledge about winter solstice

1, winter solstice, is one of the "24 solar terms". "Twenty-four solar terms" and "December construction" are the basic contents of the calendar, which were concluded in ancient times (or ancient times). According to ancient records, Emperor Tiandi began to determine his age in the name of cadres and branches. "Twenty-four solar terms" is a special festival in the calendar, indicating the season, phenology, climate change and the establishment of "December construction". The ancient "Twenty-four solar terms" were determined by the direction of the top of the Beidou bucket handle. One-year-old is divided into "Twelve Chens" in the official calendar (built in December). "Building" represents the direction of the top of Beidou bucket handle, and bucket handle turns to "Twelve Chens" in turn.

2. In traditional culture, the branch and the gossip are connected in time, and the yin position is the "root position" of the acquired gossip, which is the position at the end of the year and the beginning of the year, representing the end and the beginning, such as Yi Shuo Gua Zhuan: "Root, the divination in the northeast, is also the beginning of all things." Therefore, bucket handle starts from the north of due east (Yin position, gossip position the day after tomorrow) and makes a circle through the south, west and north, which is a cycle. It began in the beginning of spring and ended in the great cold. When bucket handle points to the "lower" position due north, it is the solstice winter solstice.