[Pramāṇa](https://indike.org/pramana/) › [Studies](https://indike.org/pramana/ins) › [Science, technology and education](https://indike.org/pramana/ins.science) › [Jyotihshastra: Astral and Mathematical Literature](https://indike.org/pramana/ins.science.pingree-1981) › c4.s2.62 # Jyotihshastra: Astral and Mathematical Literature c4.s2.62 Jyotiḥśāstra: Astral and Mathematical Literature c4.s2.62 - **Language:** English ### [c4.s2.62](https://indike.org/pramana/ins.science.pingree-1981.c4.s2.62) In about 950—1000 a second Āryabhaṭa⁷⁵ wrote a Mahāsiddhānta⁷⁶ in large part based on the Brāhmapakṣa, but beginning the planets’ rotations 3,024,000 years after the beginning of the Kalpa in the fashion of the Saurapakṣa and substituting a new set of planetary parameters. He also reports another set of new parameters which he found in a treatise ascribed to Parāśara (MS 1, 2). And, while following Lalla in dividing his work into a grahagaṇita and a gola section, he follows Brahmagupta’s BSS in including chapters on arithmetic and geometry (2, 2 = 15) and on the kuṭṭaka (2, 5 = 18) in his siddhānta. - [Previous: c4.s2.61](https://indike.org/pramana/ins.science.pingree-1981.c4.s2.61) - [Next: c4.s2.63](https://indike.org/pramana/ins.science.pingree-1981.c4.s2.63) - [Up: c4.s2](https://indike.org/pramana/ins.science.pingree-1981.c4.s2) ## Linked texts (2) - [Brāhmasphuṭasiddhānta](https://indike.org/pramana/in.astro.siddhanta.early.brahmasphutasiddhanta) — Brahmagupta, Sanskrit - [Mahāsiddhānta (Āryasiddhānta)](https://indike.org/pramana/in.astro.siddhanta.early.aryasiddhanta2) — Āryabhaṭa II, Sanskrit --- Source: [https://indike.org/pramana/ins.science.pingree-1981.c4.s2.62](https://indike.org/pramana/ins.science.pingree-1981.c4.s2.62) · Pramāṇa