Still, in our time, we use expressions that are much better discarded. Two of them are included in the sentence: The stars come out after sunset.
The sun doesn’t set. From the Earth it doesn’t seem to move much at all. What happens is that our position on the Earth spins away from it every night.
And the stars are always ‘out’, way out. We can’t see them during the day because when we face the sun its glare lights up our thin layer of atmosphere. At night we turn away. The glare fades and we see the stars from our viewing platform in space. Like looking into our big back yard.