Is there a constellation Ursa major in the sky? Where can I see it?

According to records, Ursa major 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. Ursa major ranks third in the whole sky, second only to Ophiuchus and Virgo. Then let's learn about the so-called constellation Ursa major in the sky.

Q: Is there a constellation Ursa major in the sky? A: Because each constellation can be connected into animal figures, ancient people named constellations after mythical figures or animals, but the reality does not exist.

Ursa major In ancient China, the seven bright stars of Ursa major were considered to be in the shape of a spoon, which is what we often call the Big Dipper. The three stars η, ζ and ε are the handle of the spoon, and the four stars α, β, γ and δ constitute 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 the year round, and the direction of the spoon handle changes in different seasons, just one season refers to 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.

Q: Where can I see A: 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, to the north of Beijing and Greece. However, in spring, Ursa major hangs high in the northern sky, which is the best time to watch it in four seasons.

The constellation Ursa major-astrological observation If you have been paying attention to astrological observation, you can find that the direction of bucket handle in the Big Dipper is always rotating, which is called "star shift". If the handle turns right (east) at dark, it will turn up (south) at midnight and turn left (west) before dawn. And if you pay attention to the observation at the same time every night, you will also find that the barrel handle has different directions on different days of the year. There is such a record in ancient China: bucket handle refers to the east, and the world is spring; Bucket handle guide, the world is summer; Bucket handle refers to the west, the world is autumn, bucket handle refers to the north, and the world is winter. The wise ancients have discovered the relationship between the direction of the barrel handle and the festival. Today, we can still see such astronomical phenomena.

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