The solar wind is usually moving far, far faster than the comet, so this “ion tail” winds up pointing directly away from the Sun.

太阳风移动的速度比彗星快得多，所以这个“离子尾巴”就直接指向太阳。

The dust tails look white or a teeny bit yellowish, due to reflected sunlight, while the ion tail glows blue or green, depending on the primary constituents of the gas.

由于太阳光反射的原因，尘埃彗尾看起来是白色或微黄色的，而离子彗尾则发出蓝色或绿色的光，这取决于气体的主要成分。