[Pramāṇa](https://indike.org/pramana/) › [Studies](https://indike.org/pramana/ins) › [Science, technology and education](https://indike.org/pramana/ins.science) › [The Astronomical Observatories of Jai Singh](https://indike.org/pramana/ins.science.kaye-1918) › c2.21 # The Astronomical Observatories of Jai Singh c2.21 The Astronomical Observatories of Jai Singh c2.21 - **Language:** English ### [c2.21](https://indike.org/pramana/ins.science.kaye-1918.c2.21) | 27. List of instruments . . . . . | . 35 | | 28. Samrāṭ Yantra or Equinoctial Dial . . . . . . . . . . | . 36 | | 29. Jai Prakāś . . . . . | . 37 | | 30. Rām Yantra . . . . . | . 37 | | 31. Digaṃśa Yantra or Azimuth instrument . . . . . . . . . | . 38 | | 32. Nari Valaya Yantra or Circular Dial . . . . . . . . . | . 39 | | 33. Dakshiṇo-vṛitti Yantra or Mural Quadrant . . . . . . . . | . 39 | | 33(a). Shashtāṃśa Yantra . . . . . | . 39 | | 34. Miśra Yantra and Rāśi-valaya . . . . . . . . . . . | . 39 | | 35. Evolution of these instruments . . . . . . . . . . | . 40 | - [Previous: c2.20](https://indike.org/pramana/ins.science.kaye-1918.c2.20) - [Next: c2.22](https://indike.org/pramana/ins.science.kaye-1918.c2.22) - [Up: c2](https://indike.org/pramana/ins.science.kaye-1918.c2) --- Source: [https://indike.org/pramana/ins.science.kaye-1918.c2.21](https://indike.org/pramana/ins.science.kaye-1918.c2.21) · Pramāṇa