[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) › c25.52 # The Astronomical Observatories of Jai Singh c25.52 The Astronomical Observatories of Jai Singh c25.52 - **Language:** English ### [c25.52](https://indike.org/pramana/ins.science.kaye-1918.c25.52) Ya 'qūb b. Isḥāq, 12. Ya 'qūb b. Ṭāriq, 59. Yantra = instrument. Yantra Rāja = Astrolabe 3, 32, 33. Yavana for Alexandria 73. Yavanas, Greeks or Westerners 3, 4, 12, 80. Year: length of 24, 73, 76, 137. Yunan for Rhodes 3. - [Previous: c25.51](https://indike.org/pramana/ins.science.kaye-1918.c25.51) - [Next: c25.53](https://indike.org/pramana/ins.science.kaye-1918.c25.53) - [Up: c25](https://indike.org/pramana/ins.science.kaye-1918.c25) --- Source: [https://indike.org/pramana/ins.science.kaye-1918.c25.52](https://indike.org/pramana/ins.science.kaye-1918.c25.52) · Pramāṇa