He kept seeing faint fuzzy objects that he mistook for comets, so he decided to make a catalog of them, a sort of “avoid these objects” list.

他总是看到一些模糊的物体，他误以为那是彗星，所以他决定做一个关于它们的目录，一个“避免这些物体”的目录。

Compared to our sun, their spectral lines were all shifted to the red end of the spectrum, which seemed to suggest there were a bunch of fuzzy objects in space hurdling away from earth.

与我们的太阳相比，它们的光谱线都转移到了光谱的红色一端，这似乎表明太空中有一堆模糊的物体正在远离地球。