Why does psychology not believe in constellations?

Psychology is based on scientific explanation, and many problems related to psychology are well-founded and put into practice through application. Astrology, on the other hand, is relatively vague, and many explanations are vague. We should grasp people's popular thinking and make some universal explanations. Although many summarized reflection results can grasp people's psychology, they always lack theoretical support, so psychology calls astrology "pseudo-psychology" and does not believe in constellations.