Jantar Mantar, Jaipur, Rajasthan, India
Yantra Raj, with large brass disc used as an astrolabe, to measure altitude, zenith distance, declination, longitude and local time, at Jantar Mantar, a monument completed in 1734 built by Maharaja Sawai Jai Singh, founder of Jaipur, featuring 19 architectural astronomical instruments, in Jaipur, Rajasthan, India. The instruments allow the observation of astronomical positions with the naked eye. They measure time, predict eclipses, track the location of major stars and ascertain the declinations of planets. Jantar Mantar is listed as a UNESCO World Heritage Site. Picture by Manuel Cohen
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1734 Altitude Astrolabe Astronomical Celestial Declination Disc Jaipur Jantar Longitude Maharaja Mandir Mantar Measurement Measuring Positional Ptolemaic Rajasthan Rajasthani Sawai Singh Yantra Zenith
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