[Pramāṇa](https://indike.org/pramana/) › [Indian literature](https://indike.org/pramana/in) › [Astronomy & Mathematics](https://indike.org/pramana/in.astro) › [Mathematical Astronomy](https://indike.org/pramana/in.astro.siddhanta) › [Eclipse computation](https://indike.org/pramana/in.astro.siddhanta.grahana) › Chadakanirnaya # Chadakanirnaya (Chādakanirṇaya) छादकनिर्णय sometimes identified with the author of the Bījāṅkura - **Language:** Sanskrit - **Date:** 1600–1625 CE - **Author:** [Kṛṣṇanātha](https://indike.org/pramana/person/krsnanatha) - **Text:** not yet digitised (catalogue entry) --- Source: [https://indike.org/pramana/in.astro.siddhanta.grahana.chadakanirnaya](https://indike.org/pramana/in.astro.siddhanta.grahana.chadakanirnaya) · Pramāṇa