"List of largest optical reflecting telescopes" 8.2 m (323 in) https://en.wikipedia.org/wiki/List_of_largest_optical_reflecting_telescopes https://en.wikipedi

"List of largest optical reflecting telescopes" 8.2 m (323 in) https://en.wikipedia.org/wiki/List_of_largest_optical_reflecting_telescopes https://en.wikipedia.org/wiki/List_of_largest_optical_reflec...