Why are there few stars when the moon is round and bright? Sometimes there are many stars, but there is no moon? Sometimes there are few stars when the moon is not bright? What does the moon and stars show?

Why are there few stars when the moon is round and bright? Sometimes there are many stars, but there is no moon? Sometimes there are few stars when the moon is not bright? What does the moon and stars show?

Because when the moon is full, the light of the moon blocks the light of the stars, so there are few stars
In the same way, without the bright light of the moon, there will be more stars
The reason why the moon is not very bright is that the light blocks the light of the stars (or because of light pollution and the influence of clouds), so it's best to choose a night without the moon and less light pollution when watching the stars
I've come to perfect the answer. The moon is bright and the stars are rare, which means that there are few stars in the evening with the moon. The reasons are the above three