[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) › Grahanarkajnana # Grahanarkajnana (Grahaṇārkajñāna) ग्रहणार्कज्ञान 81 verses on computing solar eclipses, based in part on the Khaṇḍakhādyaka and Bhaṭṭotpala's commentary. - **Language:** Sanskrit - **Date:** 598–668 CE - **Author:** [Brahmagupta](https://indike.org/pramana/person/brahmagupta) - **Text:** not yet digitised (catalogue entry) --- Source: [https://indike.org/pramana/in.astro.siddhanta.grahana.grahanarkajnana](https://indike.org/pramana/in.astro.siddhanta.grahana.grahanarkajnana) · Pramāṇa