Jyotihshastra: Astral and Mathematical Literature c4.23

c4.23

Planetary astronomy was introduced into India from Greece in conjunction with astrology as it was essential to possess some means of determining planetary positions in order to be able to cast horoscopes. The form of planetary astronomy originally transmitted represented Greek adaptations of the Babylonian astronomy of the Seleucid period; this was supplemented by other elements of early Greek astronomy, especially elements associated with Hipparchus.⁹ Some of the calendaric and other timekeeping conventions of the JV were also adopted by the practitioners of this type of astronomy in India.