"trifid petals"
三裂星云比礁湖星云稍微暗一些。
The trifid Nebula itself represents the final phase of star formation.三叶星云本身代表着恒星形成的最后阶段。
trifid got its name because in photographs it has three distinct lobes.三叶星云的名子来由,是因为在图片显示中,它有三片不同的叶子。
The trifid is a little dimmer than the Lagoon.三叶星云比泻湖星云稍暗一些.
trifid got its name because in photographs it has three distinct lobes.三叶星云是由于在照片中呈现出三片叶子形状而得名.