Jyotiḥśāstra
A jyotiḥśāstra (treatise on Jyotisha) is a text from a classical body of literature on the topic of Hindu astrology, known as Jyotiṣa, dating to the medieval period of Classical Sanskrit literature (roughly the 3rd to 9th centuries CE). Only the most important ones exist in scholarly editions or translations, while many remain unedited in Sanskrit or vernacular manuscripts.