[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.s2.30 # Jyotihshastra: Astral and Mathematical Literature c4.s2.30 Jyotiḥśāstra: Astral and Mathematical Literature c4.s2.30 - **Language:** English ### [c4.s2.30](https://indike.org/pramana/ins.science.pingree-1981.c4.s2.30) 1. \*ahargaṇa\*; mean longitudes; planetary \*kuṭṭaka\*. 2. \*deśāntara\* correction. 3. spherical trigonometry; catalogue of stars. 4. planetary equations (including the model involving a concentric with equant); \*tithis\*, \*karaṇas\*, \*nakṣatras\*, \*pātas\*, and \*yogas\*. 5. solar and lunar eclipses. 6. first visibility and illumination of the Moon; first and last visibilities of the planets; planetary conjunctions. 7. parameters of the Āryapakṣa and of the Ārdharātrikapakṣa. 8. examples. - [Previous: c4.s2.29](https://indike.org/pramana/ins.science.pingree-1981.c4.s2.29) - [Next: c4.s2.31](https://indike.org/pramana/ins.science.pingree-1981.c4.s2.31) - [Up: c4.s2](https://indike.org/pramana/ins.science.pingree-1981.c4.s2) --- Source: [https://indike.org/pramana/ins.science.pingree-1981.c4.s2.30](https://indike.org/pramana/ins.science.pingree-1981.c4.s2.30) · Pramāṇa