noun
Refers to fortune-telling based on the stars, especially Western-style horoscopes. Often used for daily horoscope columns.
今朝の新聞で星占いをチェックした。
I checked my horoscope in this morning's newspaper.
占星術 is a more formal, technical term for astrology as a system or study, while 星占い is the everyday word for horoscopes and fortune-telling.
Compound of 星 (star) and 占い (fortune-telling).