Sawai Jai Singh and His AstronomySawai Jai Singh the statesman astronomer of 18th century India designed astronomical instruments of masonry and stone, built observatories prepared a Zij or a text for astronomical calculations and sent a fact-finding scientific mission to Europe. His high precision instruments were designed to measure time and angles to the very limit of naked eye observing. |
Contents
Decision to Build Observatories | 19 |
Masonry Instruments II | 67 |
Delhi Observatory | 85 |
Jaipur Observatory I | 121 |
Jaipur Observatory II | 156 |
Varanasi Observatory | 191 |
Ujjain Observatory | 212 |
The Observatory of Mathura | 229 |
Sawai Jai Singhs Hindu Astronomers | 257 |
The Muslims and the Europeans | 282 |
Conclusion | 304 |
Appendices | 318 |
| 335 | |
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Common terms and phrases
accuracy Agrā Almagest altitude angle armillary sphere astrolabe astronomers azimuth Bahura Bhavan Boudier Cakra celestial circle constructed coordinates copy Dakṣinottara Bhitti declination degrees Delhi Devanagari Dhat dial diameter Digamsa divided ecliptic engraved equator European Garrett gnomon Hindu astronomy horizon hour angle Hunter India instrument Islamic Jagannatha Jaipur Jaipur observatory Jantar Jaya Prakāśa Jesuit Jyotiṣa Kapāla Kaye Kevalarama Krantivṛtta latitude least count located longitude masonry Mathura measuring meridian minutes moon Muḥammad Shāhī Nāḍīvalaya Niyata observations penumbra plane plate pole Ptolemy quadrant radius Raja Rajasthan Rāma yantra Rasivalayas readings ring Samrat of Jaipur Samrat yantra Sanskrit Sasthamsa Sawai Jai Sawai Man Singh shadow Siddhanta Singh II Museum small divisions small Samrat SSMC star sundial surface tables Tabulae Astronomicae telescope Tieffenthaler Ujjain Ulugh Ulugh Beg Varanasi vertical wall west quadrant width Yantraprakāra zenith distance zero markings Zij-i Muḥammad
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Page 2 - Singh, from the first dawning of reason in his mind, and during its progress towards maturity, was entirely devoted to the study of mathematical science, and the bent of his mind was constantly directed to the solution of its most difficult problems, by the aid of the Supreme Artificer, he obtained a thorough knowledge of its principles and rules.