[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) › c15.s3.2 # The Astronomical Observatories of Jai Singh c15.s3.2 The Astronomical Observatories of Jai Singh c15.s3.2 - **Language:** English ### [c15.s3.2](https://indike.org/pramana/ins.science.kaye-1918.c15.s3.2) But, about the thirteenth century, sounder opinions began to prevail, and in the early part of the sixteenth century Copernicus wrote his \*De Revolutionibus Orbium Cœlestium\*. Tycho Brahe, Kepler, and Galilei preceded Jai Singh by about a century. Greenwich observatory was founded some forty years before that at Delhi. Newton's \*Principia\* was written at the time of Jai Singh's birth; Huygens died a few years later; Flamsteed's catalogue of stars was first printed in 1688; Halley, in 1705, predicted the return of the comet named after him; the aberration of light was discovered in 1727. Jai Singh succeeded to the Amber territory in 1699, and the Delhi observatory was built about 1724. - [Previous: c15.s3.1](https://indike.org/pramana/ins.science.kaye-1918.c15.s3.1) - [Next: c15.s3.3](https://indike.org/pramana/ins.science.kaye-1918.c15.s3.3) - [Up: c15.s3](https://indike.org/pramana/ins.science.kaye-1918.c15.s3) --- Source: [https://indike.org/pramana/ins.science.kaye-1918.c15.s3.2](https://indike.org/pramana/ins.science.kaye-1918.c15.s3.2) · Pramāṇa