Can the Big Dipper tell the seasons?

The Big Dipper is a part of Ursa major. Graphically, the Big Dipper is located at the tail of Ursa Major. Of these seven stars, five are two and two are three. Through the connection of the two stars in the mouth of the bucket, it extends about 5 times in the direction of the mouth of the bucket and finds the Polaris.

Beidou is composed of Shu Tian, Tian Xuan, Tianji, Tianquan, Yuheng, Kaiyang and Yaoguang. The position of the Big Dipper in the sky is different in different seasons. Therefore, ancient China people determined the four seasons according to its position change.

The Big Dipper always moves slowly in the sky. March to May is spring every year. Take the starry sky at eight or nine o'clock in mid-April as an example. At this time, you will see the bucket handle of the Big Dipper pointing to the east.

June to August is summer every year. Take the starry sky seen at eight or nine o'clock in mid-July as an example, when the bucket handle of the Big Dipper points south.

Every September to 165438+ October is autumn. Take the starry sky at eight or nine o'clock in the middle of 10 as an example. At this time, the Big Dipper has come to the north at low altitude.

Every year from February 65438 to February of the following year is winter. Take the starry sky seen at eight or nine o'clock in the middle of June 65438 as an example. Although the weather is cold in winter, the bright stars in the starry sky in winter night are more magnificent than the other three seasons. At this time, the Big Dipper has reached the northeast sky, and bucket handle points to the north. The center of the winter night sky is Orion, which appears in the southern sky.