What does the Year of Tatsumi mean?

"Nian" refers to one of the twelve earthly gods headed by Chen in the China lunar calendar, which is adjacent to "Si" and repeats every six years.

As follows:

Heavenly stems and earthly branches, the main branch for short, originated from the observation of astronomical phenomena in ancient China. Ten cadres refer to meeting, understanding, soft omen, strong feelings, harmony, earth prestige, chapter, emphasizing light, mystery and zhaoyang. Twelve branches refer to being sleepy, enthusiastic, photogenic, single-handed, in charge of Xu, in the wild, escaping, coordinating, going to the beach, in a bad mood, castrating, and having great depth.

Simplified heavenly stems and earthly branches: "A, B, C, D, E, Ji, G, Xin, Ren, Gui" is called ten heavenly stems, and "Zi, Ugly, Yin, Mao, Chen, Si, Wu, Wei, Shen, You, Xu, Hai" is called twelve earthly branches.

Ten heavenly stems and twelve earthly branches are collocated in turn to form sixty basic units, and they cooperate with each other in a fixed order to form the chronology of the stems and branches. Heavenly stems and earthly branches's invention has far-reaching influence, and he still uses heavenly stems and earthly branches in calendar, tricks, calculation, naming and so on.

According to the knowledge of modern astronomy, we can know that the 28 stars on Sunday are made up of stars. Astronomically speaking, stars are very stable, their relative positions remain unchanged for thousands of years or even longer, and their influence on the earth is relatively stable, while the earth and other planets in the solar system constantly revolve around the sun.

The whole solar system hovers in the Milky Way at the same position relative to the Polaris (that is, the purple and micro stars). Because the movements of the sun, the moon and the five stars have changed the positional relationship between the stars, which has changed the influence of specific stars on the earth and everything on the ground, the ancients predicted good or bad by observing the sky at night.

Astronomically, the ecliptic plane is divided into twelve zodiac signs, and the ecliptic crossing the zodiac signs is divided into twelve months. Therefore, in ancient times, the zodiac was named after the earthly branch, and the zodiac corresponded to 28 nights, that is, the uterus had three nights: female, virtual and dangerous; There are fights and cows in the ugly palace for two nights; Yin palace has a tail and a basket for two nights; Mao Gong spent three nights, that is, accommodation, room and heart. Chen Gong has horns and two nights; The fourth house has wings for two nights.

There are Liu, Xing and Zhang in the noon palace; There are two nights in the palace; There are two nights in Shen Gong. There are three nights in the palace: stomach, phlegm and end; There are two nights in the palace, Wei Xiao and Lou; The sea palace has one room and one wall and stays for two nights. Therefore, the 28-night astronomical image is the image source of the ground paintings in the study of cadres and branches, and there are 28 stars hidden in the twelve branches, which is also the source of its significance.