Telescopes designed to be used as optical astronomical interferometers, as it can reach very high resolutions and at a narrower range of observations.
Today let’s check out this amazing list of Top 3 Largest Optical Reflecting Telescopes in the World.
1) Gran Telescopic Canarias (GTC)
Nationality/ Sponsors : Spain (90%), Mexico, USA
Built : 2002-2008
It is also known as the Great Canary Telescope. Located on the island of La Palma , in the Canaries, Spain. It is 10.4 m (410 in) reflecting telescope. Its altitude is around 2,267 m (7,438 ft).
2) Hobby Eberly Telescope (HET)
Nationality/ Sponsors : USA, Germany
Built : 1997
Located at the McDonald Observatory. The primary mirror is constructed from 91 hexagonal segments, which is less expensive than manufacturing a single large primary, resulting in low construction cost. Its altitude is 2,026 m (6,647 ft), and 10-meter (30-foot) aperture telescope.
3) Keck 1
Nationality/ Sponsors : USA
Built : 1993
W. M. Keck Observatory is a two-telescope astronomical observatory, it feature 10 m (33 ft) primary mirrors. These are largely used and productive astronomical observatory on the earth.
Also Read: Top 3 Largest Aircraft Carrier In The World
Do You KNOW ?
Today, there are some online telescopes that allow you to view the night sky in various places from the comfort of your own home.