orion molecular cloud

基本解释

The entire cosmic vista spans over 30 light-years, near the edge of the Orion molecular cloud complex some 1,500 light-years distant.
这整张宇宙影像覆盖超过30光年，距离猎户座复杂分子云大约1，500光年远。
bbs.astron.ac.cn
The complex is called the Vela Molecular Cloud Ridge, and may form part of the edge of the Orion spiral arm spur in the Milky Way galaxy.
这片复合区域被称为船帆分子云脊（Vela Molecular Cloud Ridge），它可能参与形成了猎户座悬臂的边缘部分。
Like the Horsehead, the Flame, and the Orion Nebula itself, M78 is a readily visible part of the large Orion Molecular Cloud complex some 1, 500 light-years distant.
正如马头，火焰，以及猎户星座一样，M78是大猎户座分子云可见的一部分，约有1500光年的距离。