Complex sentence: It was discovered on 27 September 1941, by Finnish astronomer Liisi Oterma at Turku Observatory in Southwest Finland, and named for Swedish geodesist Erik Tengström.
Split into simpler sentences: It was discovered on 27 September 1941, by Finnish astronomer Liisi Oterma at Turku Observatory in Southwest Finland. It is named for Swedish geodesist Erik Tengström.