About Udaipur Solar Observatory
The Udaipur Solar Observatory is a solar research facility located on an island in Fateh Sagar Lake in Udaipur, Rajasthan. Established in 1975-1976 by Dr. Arvind Bhatnagar and managed by the Physical Research Laboratory since 1981, it is one of only two observatories in India situated amidst water. The observatory conducts high-resolution solar observations using advanced telescopes including the Multi-Application Solar Telescope and GONG telescope.
Visitors guide
Visitors can view the observatory from boats on Fateh Sagar Lake or from the shores, as the facility is primarily a restricted research site. External viewing of the island location and its unique setting surrounded by water is possible. In exceptional cases with prior permission, limited access may be granted. The observatory features multiple solar telescopes used for scientific research on solar activity and space weather.
Key highlights
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Located on an island in the middle of Fateh Sagar Lake
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One of only two water-surrounded observatories in India
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Home to the Multi-Application Solar Telescope (MAST) with 50cm aperture
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Part of the Global Oscillations Network Group (GONG) with only 6 stations worldwide
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Established in 1975-1976 following the Big Bear Solar Observatory model
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Receives approximately 250 days of sunlight annually
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Managed by Physical Research Laboratory under Department of Space
History of Udaipur Solar Observatory
The Udaipur Solar Observatory was established in 1975-1976 by Dr. Arvind Bhatnagar under the Vedshala Trust of Ahmedabad, modeled after the Big Bear Solar Observatory in California. In 1981, it was taken over by the Physical Research Laboratory for the Department of Space, Government of India. It has been conducting solar physics research for over 50 years and serves as an important link in international solar observation networks.
Culture & Context
The observatory represents India's contribution to international solar physics research and space weather monitoring. It is part of the Global Oscillations Network Group, filling a crucial longitudinal gap between Australia and Spain for continuous solar coverage.