nebular

The remnant nebular gas pervades the interplanetary space.

星云的残余气体充斥星际空间.

This paper analyses the structure of the outer edge region of the solar nebular disk, and shows that no formation zone of comets can exist there.

本文分析了星云盘外缘区的结构，论证了那里不可能存在彗星形成带。

Observation of variables in Ophiuchus Scorpius region& new rapid variables and nebular variables

蛇夫-天蝎暗云区的变星观测&新快变星及星云变星

Spectrophotometry of n her 1963 in its nebular stage

武仙座1963年新星星云阶段的分光光度

( astronomy) the nebular hypothesis of the origin of the solar system.

（天文学）关于太阳系起源的星云假说。

Below the frame center and just to the right of Alnitak lies the Horsehead Nebula, a dark indentation of dense dust that has perhaps the most recognized nebular shapes on the sky.

画面中央偏下，也就是位在参宿一右方的马头星云，由致密的黑暗尘埃组成，应当是天空中最被认可的形状。