What is the name of the founder of the famous chain of survey triangulations stretching from Hammerfest to the Black Sea?
Tartu Observatory The Tartu Observatory (Estonian: "Tartu Observatoorium" ) is the largest astronomical observatory in Estonia. It is located on the Tõravere hill, about 20 km south-west of Tartu in Nõo Parish, Tartu County. The old Tartu Observatory located in Tartu city centre, is known internationally for its connection to Friedrich Georg Wilhelm von Struve and the Struve Geodetic Arc, of which it is the first reference point.
Friedrich Parrot Johann Jacob Friedrich Wilhelm Parrot (14 October 179115 January 1841) was a Baltic German naturalist, explorer, and mountaineer, who lived and worked in Dorpat (today Tartu, Estonia) in what was then the Governorate of Livonia of the Russian Empire. A pioneer of Russian and Estonian scientific mountaineering, he is best known for leading the first expedition to the summit of Mount Ararat in recorded history.