Ursa minor and Ursa major. )

The brightest and most important thing in the northern sky is Ursa Major. In this constellation, there is the famous Big Dipper. Ursa major can be seen at any time, and the best observation time is spring dusk. We think Ursa Major is the symbol of spring. On the map, the bear's long tail is the bucket handle of the Big Dipper, the four stars of the Big Dipper are the bear's body, and other darker stars make up the bear's head and feet. There are more than one hundred stars in Ursa Major.

Ursa minor consists of 28 stars of magnitude 6 or above, next to Ursa major. Alpha Star Ursa minor is a very famous Polaris, and Polaris and six other relatively prominent stars (2-4, etc. ) Arranged in a small spoon like the Big Dipper. The shape of the spoon and the way to bend the handle are different from those of the Big Dipper. The end of the barrel handle is the North Pole. Of the seven stars in Ursa minor, except α and β, which are slightly bright second-class stars, the rest are dark stars, so Ursa minor is not as dazzling as the Big Dipper, and it is hard to see in bright nights or big cities.