horsehead nebula

Horsehead Nebula: New stars have already formed inside part of it.

马头星云: 新的?星已经在其内部形成了.

Directly below Alnitak, a close inspection will reveal the Horsehead Nebula.

经过仔细查看就可以发现紧挨着参宿一的下方就是马头星云.

Explanation : The Horsehead Nebula is one of the most famous nebulae on the sky.

马头星云是天空中最着名的星云之一.

Light takes about 1500 years to reach us from Horsehead Nebula.

从马头星云发出的光需要经过1500光年才能到达我们这里.

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。