What season does Ursa major appear every year?

At different latitudes of the earth, the constellations you can see are different. The constellation Ursa major can be seen all year round in areas above 40 north latitude, that is, north of Beijing and Greece. However, in spring, Ursa major is high in the northern sky, which is the best time to watch its panorama in four seasons.

UMa is one of the northern constellations, located near Ursa minor and Leo, opposite Cassiopeia. Suitable for spring observation, it is the constellation of the famous Big Dipper. All the stars in Ursa major are the third in the whole sky, second only to Ophiuchus and Virgo. Because of the existence of the Big Dipper (from Alpha Ursa major to η Ursa major, except for Delta Ursa major, the other six are bright stars above second star), Ursa major is probably the most famous constellation in the whole day. The first two stars of the Big Dipper, α and β, are the signs of finding the North Star. The connection between these two stars points directly to Polaris (Gou Chenyi) near the north celestial pole.

In ancient China, the seven bright stars in Ursa Major were considered to be in the shape of a spoon, which is what we often call the Big Dipper. You see, η (shimmering), ζ (Kaiyang) and ε (Yuheng) are the handles of the spoon, and four stars, α (Shu Tian), β (providence), γ (Tianzhu) and δ (Tian Quan), make up the spoon body. In fact, when looking at the constellation Ursa major, the shape of the spoon is easier to see than the image of the bear. This big spoon is in the sky all year round, and the direction of the handle changes in different seasons, and one season happens to be one direction. In the words of the ancients, it is: "bucket handle refers to the east, and the world is spring; Bucket handle guide, the world is summer; Bucket handle refers to the west, and the world is autumn; Bucket handle refers to the north, and it is winter in the world. " There was no calendar in ancient times, so people used this method to calculate the four seasons. Of course, due to the rotation of the earth, this phenomenon must be seen after eight o'clock in the evening.

In ancient China, the Big Dipper was called the God of the Big Dipper. There is a saying that the palm of the Big Dipper holds the power of life and death. It is said that Peng Zu begged the Big Dipper for mercy, so he lived to be 800 years old. It is also said that the Big Dipper has nine planets, two of which are hidden in a bucket, where the Jade Emperor is a god and is not easy to be seen. If someone sees it, he can prolong his life. It is said that Huo Guang, the prime minister of the Han Dynasty, had a servant.