三裂星云比礁湖星云稍微暗一些。
有些星云是由反射星云和发射星云结合在一起的，例如三裂星云。
Some nebulae are made up of both reflection and emission components such as the Trifid Nebula.
第十，我们看到一个片段的三裂星云的恒星摇篮到9000光年。
Tenth, we see a fragment of the Trifid Nebula, a stellar cradle to 9000 light-years.
应用推荐