The 106-year-old astronomical observatory at the Langat Singh College, Muzaffarpur (Bihar) has been included on the UNESCO list of important endangered heritage observatories of the world.
- The observatory was established in the college in 1916 to impart astronomical knowledge to the students in detail.
- A planetarium was also set up in the college in 1946.
- After 1970, the condition of the observatory, as well as the planetarium, started declining gradually and most of the machines installed there have either been lost or become junk.
- Later, in 1995, it was sealed when some astronomical equipment and accessories were found missing from the observatory.
- Langat Singh College, now affiliated to Bhim Rao Ambedkar Bihar University, was set up in 1899.
- The List of World Heritage in Danger is designed to inform the international community of conditions which threaten the very characteristics for which a property was inscribed on the World Heritage List, and to encourage corrective action.
