Ursa Major Cluster

例句：

1. 1. TheUrsa Major cluster is a popular destinationfor stargazers.
   大熊座星群是许多观星爱好者的热门目的地。
2. 2. The Ursa Major cluster contains over300 stars.
   大熊座星群包含超过300颗星星。
3. 3.The Ursa Major cluster is visible frommany locations around the world.
   大熊座星群可以从世界各地的许多地方看到。