What has seven stars and what goes around the North Pole?

There are seven big scoops, which form a Big Dipper around Polaris. The most familiar star in the sky is the Big Dipper. Even people who are not familiar with the starry sky may mention the Big Dipper. This is because it has seven bright stars forming a remarkable barrel shape, and people can easily find it. There are so many bright stars in a small sky that only Orion can match it all day. More importantly, it is located near the North Star. For the residents of the northern hemisphere, it often appears in the sky above the northern horizon, and even never falls below the horizon, and can be seen all night. The Big Dipper, referred to as Beidou for short, belongs to Ursa major (this may be unknown to many readers, but it is actually only a part of Ursa major). The first four stars form a bucket basin, hence the name "Dou Kui", or "Kui Xing" for short, which is quite a bear's belly, and the last three stars form a bucket handle, or Yuheng, which is quite a bear's tail. The ancients in China observed Beidou very carefully, and gave each star a special name: from Doukou, the alpha star in Ursa major is Shu Tian, the beta star is Tian Xuan, the gamma star is celestial pole, the delta star is Tian Quan, the epsilon star is Yuheng, the zeta star is Kaiyang, and the η star is Yaoguang. Except Tianli 3, all the others are level 2 stars, almost as bright as Polaris. Interestingly, there is 1 fourth-order dark star near Kaiyang (Zeta Star), which supplements the Chinese name, and the Spanish name is Alcor, which comes from Arabic and means rider. This means Kaiyang is regarded as a horse. The satellite is also called Alsata in ancient Arabic, which means test. It turns out that in ancient Arabs, this star was used to test soldiers' eyesight, and those who could distinguish the auxiliary star were considered as qualified. Source: space exploration