Pathway to Devasthal Astronomical Observatory, ARIES
Ram Sagar, Gopal-Krishna

TL;DR
Devasthal Observatory in India, established over five decades, hosts multiple telescopes with proven observational capabilities, supported by extensive site surveys and international collaboration, contributing valuable astronomical data.
Contribution
This paper details the development, site selection, and operational history of Devasthal Observatory, highlighting its scientific achievements and global competitiveness.
Findings
Successful installation of 1.3 m, 3.6 m, and 4 m telescopes.
Optical and near-infrared observations demonstrate high-quality data.
Collaborative efforts with TIFR enhanced scientific output.
Abstract
Devasthal observatory, established over a time span of about 5 decades, is located in central Himalayan region of Devabhumi in Nainital district of Uttarakhand state, India. Operated and maintained by the Aryabhatta Research Institute of observational sciencES (ARIES), its location was selected after an extensive site survey. The first measurements of atmospheric seeing and extinctions at Devasthal were carried out during 1997 to 2001. Since 2010, three optical telescopes of 1.3 m, 3.6 m and 4 m apertures have been successfully installed at Devasthal. Optical and near infrared observations taken with these telescopes testify to the global competitiveness of Devasthal observatory for astronomical observations. The article chronicles the collaboration with the Tata Institute of Fundamental Research, beginning around 1996, for the purpose of establishing the observatory. A brief overview…
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Taxonomy
TopicsAstronomical Observations and Instrumentation
