It is the most prominent variation that kept inside this great observatory. It contains a triangular gnomon.
Architectural Marvel
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Jantar Mantar refers to a group of observatories constructed by Maharaja Jai Singh II in five different cities: Delhi, Jaipur, Ujjain, Varanasi, and Mathura.
Jai Prakash Yantra
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Jai Prakash Yantra is the most beautiful one. The mantra is used for calculation of sun’s position along with several other heavenly bodies.
Scientific Significance
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The instruments at Jantar Mantar were used for a range of astronomical observations, such as determining the time of day, predicting eclipses, and calculating the positions of celestial bodies.
Ram yantra is popularly used for calculating horizontal and vertical angles.
Instruments and Structures
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The observatories consist of large masonry instruments and structures that were carefully designed to measure time, track celestial movements, and predict planetary positions.
Misra Yantra
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The Nita chakra of this Misra yantra indicates Zurich, Greenwich meridians.
Digamsa Yantra
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It is used to measure the Azimuth of any type of celestial object.
Dakshinottarabhitti Yantra
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The appearance of this yantra symbolizes the entry of the sun in cancer constellation.
Many of the instruments at Jantar Mantar are based on the principles of sundials and quadrants.
Agra Yantra
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Although the instruments seem to be big, we don’t know for what purpose was it used.
The instruments were meticulously aligned with the cardinal points (north, south, east, and west), ensuring their accuracy in tracking celestial movements and the positions of celestial bodies.