英语语法分析

Part of the larger constellation of Ursa Major, the bright dipper stars above are named Dubhe, Merak, Phecda, and Megrez.

它是大熊座巨大星群的一部分，上面明亮的北斗七星名字依次是：天枢，天璇，天玑，天权。

NGC 3982 is located about 68 million light-years away in the constellation Ursa Major.

NGC 3982位于离大熊星座星群约6千8百万光年处。

Also called the North Star, Polaris is the brightest dot in the constellation Ursa Minor.

北极星也被称作North Star，是小熊座最亮的一颗星。