竖底沙论 (豎底沙論) shùdǐshā lùn

shùdǐshā lùn phrase the study of the movements of the celestial bodies and scheduling Vedic rituals
Domain: Buddhism 佛教
Notes: Sanskrit equivalent: jyotiṣa; one of the six vedāṅgas of Vedic study (FGDB '六論'; MW 'jyotiṣa'; Wikipedia '吠陀支')