deep sky objects 深空天体
On Deep-sky objects, the eyepiece continued to do quite well, showing many faint stars in open clusters.
在观测深空天体时，它仍然有很出色的表现，它分解出了许多疏散星团中暗弱的星点。
As the view level increases, you will normally want to show fainter deep sky objects.
在视场等级增加时，你通常希望看到更黯淡的深空天体。
Most deep sky objects don't have a "popular name" - if we want to find them, we need to know their catalog number, or at least one of their catalog Numbers, since most objects have several.
大部分深空天体没有“常用名称”，要找到它们，必须知道至少一个星表编号——大部分都有好几个。
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