Animation illustrating the cause of atmospheric "seeing"
Animation illustrating the cause of atmospheric "seeing"
The same piece of sky seen with 5, 3.5, and 2 arcsecond atmospheric "seeing"
Mirror sizes of some large optical and infrared telescopes (on Mauna Kea in Hawaii)
The Keck Telescopes at sunset (on Mauna Kea in Hawaii)
Schematic diagram of the Keck Telescopes (on Mauna Kea in Hawaii)
Recent picture of the Hobby-Eberly Telescope (in western Texas near Fort Davis)
Schematic diagram of the Hobby-Eberly Telescope (in western Texas near Fort Davis)
Quasar optical spectra taken by the Hobby-Eberly Telescope (by C. Vignali, W.N. Brandt, and D.P. Schneider)
