当然，彗星和背景恒星在行星地球的天空中运行速度是不一样的。

Of course, the comet and background stars move at different rates through planet Earth's skies.

youdao

下面是几张不同的图，你会发现，只是图中的天空改变了，但是图的整个基调和色调都完全不一样。

With the different images below, you will see how much the mood and tone shift from just changing out the sky.

youdao