List of largest optical telescopes in the 20th century
Single India Indian Astronomical Obs., Hanle (4500 m) 2000 Alfred Jensch
Teleskop
2 m 79″ Single Karl Schwarzschild Observatory 1960 Carl Zeiss Jena 2 m...
63 KB (2,637 words) - 04:53, 6 July 2024
