noun
Nine Star Ki astrology; Onmyōdō-based astrology
A form of divination rooted in Onmyōdō, using nine stars and the five elements to analyze personality, fortune, and compatibility. Often encountered in Japanese fortune-telling contexts.
See also: 九星
九星気学では、生まれた年によって本命星が決まる。
In Nine Star Ki astrology, your main star is determined by your birth year.
彼女は九星気学を使って相性を占っている。
She uses Nine Star Ki astrology to tell compatibility.
Compound of 九星 (kyūsei, 'nine stars') and 気学 (kigaku, 'ki/energy study'). The term refers to a modern divination system developed from traditional Onmyōdō concepts.