[Pramāṇa](https://indike.org/pramana/) › [Studies](https://indike.org/pramana/ins) › [Science, technology and education](https://indike.org/pramana/ins.science) › [A History of the Kerala School of Hindu Astronomy (in Perspective)](https://indike.org/pramana/ins.science.sarma-1972) › c10.s8.33 # A History of the Kerala School of Hindu Astronomy (in Perspective) c10.s8.33 A History of the Kerala School of Hindu Astronomy (in Perspective) c10.s8.33 - **Language:** English ### [c10.s8.33](https://indike.org/pramana/ins.science.sarma-1972.c10.s8.33) Acyuta Piṣāraṭi of Tṛkkaṇṭiyūr (Skt. Kuṇḍapura) in South Malabar, was a versatile scholar and original thinker on astronomy. It was he who enunciated, for the first time, in Indian astronomy, the correction called ‘Reduction to the the ecliptic’, in his work \*Sputanirṇaya\* (before A.D. 1593) and set out its rationale, elaborately, in his work \*Rāśigolasphuṭanīti\*.³ As pointed out earlier, (see above pp. 12-14), this correction was first introduced in Western astronomy by Tycho Brahe, at about the same time. Acyuta was a protege of King Ravi Varma of Veṭṭattuṇāḍ (Skt. Prakāśaviṣaya) and was the teacher of the renowned poet and grammarian Melputtūr Nārāyaṇa Bhaṭṭa, who, in the \*carama-śloka\* which he composed at the death of Acyuta, expressed the date of the latter’s demise in the chronogram, \*vidyātama svar asarpat\* (17,24,514), which falls in A.D. 1621. Acyuta has composed about a dozen works on Jyotiṣa, including \*Karaṇottama\*,⁴ on astronomical computation, in five chapters, \*Uparāgakriyākrama\*,¹ and \*Uparāgavimśati\*² on eclipse computation, \*Chayāṣṭaka\* on shadow computation and \*Jātakābharaṇa\* (?) and \*Horāsāroccaya\* on horoscopy. He has commented on the \*Veṇvāroha\* of Saṅgamagrāma Mādhava,³ \*Suryasiddhānta\* and on his own \*Sphuṭanirṇaya\* and \*Karaṇottama\*.⁴ - [Previous: c10.s8.32](https://indike.org/pramana/ins.science.sarma-1972.c10.s8.32) - [Next: c10.s8.34](https://indike.org/pramana/ins.science.sarma-1972.c10.s8.34) - [Up: c10.s8](https://indike.org/pramana/ins.science.sarma-1972.c10.s8) ## Cites (3) - [Sūryasiddhānta](https://indike.org/pramana/in.astro.siddhanta.early.suryasiddhanta) — Maya, Sanskrit - [Jātakābharaṇa (Rāmacandra)](https://indike.org/pramana/in.astro.hora.nibandha.jatakabharana-works.jatakabharana-ramacandra) — Rāmacandra 1722, Sanskrit - [Karaṇottama](https://indike.org/pramana/in.astro.kerala.tantra.karanottama) — Acyuta Piṣāraṭi 1593, Sanskrit --- Source: [https://indike.org/pramana/ins.science.sarma-1972.c10.s8.33](https://indike.org/pramana/ins.science.sarma-1972.c10.s8.33) · Pramāṇa