The alignment happens 18.6 days sooner than if the nodes were not moving, creating the shorter eclipse year (about 346.6 days).

这种变动正好比未移动时的交点快18.6天，形成较短的食年（约346.6天）。

Break out the flashlights. When a full lunar eclipse takes place on the shortest day of the year, the planet may just get awfully dark.

拿出手电筒吧。当一年里最短的一天发生月全食，地球可能会变得一片漆黑。

When a full lunar eclipse takes place on the shortest day of the year, the planet may just get awfully dark.

当一年里最短的一天发生月全食，地球可能会变得一片漆黑。