Key Instruments Used in Jantar Mantar
Jantar Mantar in Delhi was built in 1724 by Maharaja Jai Singh II of Jaipur. The observatory houses
several astronomical instruments built from red stone and marble.
Samrat Yantra
The world’s largest sundial used to measure time with an accuracy of up to 2 seconds.
Jayaprakash Yantra
Two hemispherical structures used to observe celestial objects.
Misra Yantra
A unique instrument that can find the shortest and longest days of the year.
Rama Yantra
Measures altitude and azimuth of celestial objects.
Shasthamsa Yantra
Used to measure angles of celestial objects.
