Does it happen on February 29th of the lunar calendar every year?
The lunar calendar is the current modern calendar in China. It belongs to the combined calendar of yin and yang, that is, the combined calendar of lunar calendar and solar calendar. According to the change cycle of the moon phase, each moon phase changes to one month, and the leap month is set with reference to the length of a year in the tropical year of the sun and 24 solar terms, so that the average calendar year can adapt to the tropical year.
February 29th of the lunar calendar.
February 29th of the lunar calendar every year. Lunar calendar is a fixed calendar with the characteristics of astronomical calendar. The lunar calendar has only 29 days and 30 days, and it is stipulated by a fixed date. There are very few human factors and it is not easy to change it at will.
Twenty-four solar terms of the lunar calendar
China's astrology culture has a long history and is profound. The ancients began to explore the mysteries of the universe very early, and thus deduced a complete and profound star-watching culture. Twenty-four solar terms were originally formulated according to the bucket handle rotation direction of the Big Dipper, which rotates circularly and is closely related to the seasonal changes.
The Big Dipper consists of seven stars, namely Shu Tian, Tian Xuan, Tianji, Tianquan, Yuheng, Kaiyang and Yaoguang. Named for its twists and turns. The Big Dipper is an important astrological sign in the northern hemisphere (China is located in the northern hemisphere). The natural rhythm of the corresponding area in the northern hemisphere changes gradually when the Big Dipper rotates repeatedly, so it becomes the basis for ancient people to judge the seasonal changes.
"Twenty-four solar terms" is a special festival to express the natural rhythm changes in the dry calendar and establish "December" (monthly order), which is a solar month based on "Twenty-four solar terms". One-year-old (taking photos) is divided into twelve days (made in December, made in December), and the monthly order is calculated according to the operation of the Big Dipper. The day referred to by bucket handle is called "sword fighting" (also called Jian Yue).
In traditional culture, the branch is linked with the time position of gossip, and the yin position is the root position of gossip the day after tomorrow. It 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: "The root is also the divination of the Northeast, and everything begins." That is, bucket handle rotates clockwise from due east to north (yin position and acquired gossip position), which is one of the "years old" (from beginning of spring to the next beginning of spring, it is one year old). Silver moon said that "spring is positive", and the beginning of spring is the beginning of a year. Beginning of spring is the beginning of all things and the meaning of all self-renewal. Bucket handle, the Big Dipper, points to the establishment of the 24 solar terms, starting from beginning of spring and ending in severe cold.