What do you say to watching the stars at night?

Last night, I saw the celestial phenomena and the purple star moved eastward, so I counted it with my fingers. A book of God was born. So, I found it here. I vomited blood three feet three feet, and the blood was stained with white silk. Thousands of years of practice were destroyed. Shouting: "This is a masterpiece, beyond the reading range of ordinary people!"

It can be used to describe many things, novels, games, news and critical works.

The ancients observed celestial phenomena at night:

After a long period of night observation, the ancients finally found that the direction of constellation movement is regular, which can be consistent with the climate change on the earth.

Therefore, there is such a record in the ancient book Guanzi 4,000 years ago in China: "The barrel handle refers to the east, the world is spring, the world is summer, the barrel handle refers to the west, the next is autumn, and the barrel handle refers to the north, and the world is winter." This is to judge the season by observing the position of the Big Dipper at dusk.

With the passage of four seasons, the Big Dipper rotates clockwise in the starry sky. Every time the bucket points to the east, everyone knows that spring is coming and farmers can start preparing for sowing. And this method of determining the four seasons by observing the regular changes of the sky is called "observation time", which was used by the ancients for a long time in the era without calendar.