The Large Binocular Telescope at the Mount Graham International Observatory in Arizona uses two curved mirrors to gather light
An optical telescope is a telescope that gathers and focuses light mainly from the visible part of the electromagnetic spectrum, to create a magnified image for direct visual inspection, to make a photograph, or to collect data through electronic image sensors.
There are three primary types of optical telescope:
Refracting telescopes, which use lenses and less commonly also prisms (dioptrics)
Reflecting telescopes, which use mirrors (catoptrics)
Catadioptric telescopes, which combine lenses and mirrors
An optical telescope's ability to resolve small details is directly related to the diameter (or aperture) of its objective (the primary lens or mirror that collects and focuses the light), and its light-gathering power is related to the area of the objective. The larger the objective, the more light the telescope collects and the finer detail it resolves.
People use optical telescopes (including monoculars and binoculars) for outdoor activities such as observational astronomy, ornithology, pilotage, hunting and reconnaissance, as well as indoor/semi-outdoor activities such as watching performance arts and spectator sports.
An opticaltelescope is a telescope that gathers and focuses light mainly from the visible part of the electromagnetic spectrum, to create a magnified...
Originally it was an optical instrument using lenses, curved mirrors, or a combination of both to observe distant objects – an opticaltelescope. Nowadays, the...
largest optical reflecting telescopes – List of large opticaltelescopes List of largest optical refracting telescopes List of space telescopes List of...
Telescopes with aperture diameter >8 metres This list of the largest optical reflecting telescopes with objective diameters of 3.0 metres (120 in) or greater...
of about 0.05 arcsec for an opticaltelescope with a mirror 2.5 m (8 ft 2 in) in diameter. Second, a space-based telescope could observe infrared and ultraviolet...
The Large Binocular Telescope (LBT) is an opticaltelescope for astronomy located on 10,700-foot (3,300 m) Mount Graham, in the Pinaleno Mountains of...
A refracting telescope (also called a refractor) is a type of opticaltelescope that uses a lens as its objective to form an image (also referred to a...
The James Webb Space Telescope (JWST) is a space telescope designed to conduct infrared astronomy. Its high-resolution and high-sensitivity instruments...
The Large Ultraviolet Optical Infrared Surveyor, commonly known as LUVOIR (/luːˈvwɑːr/), is a multi-wavelength space telescope concept being developed...
observations using his telescope List of opticaltelescopes List of largest optical refracting telescopes List of space telescopes List of telescope types Visible-light...
Extremely Large Telescope (ELT) is an astronomical observatory under construction. When completed, it will be the world's largest optical/near-infrared...
OpticalTelescope Element (OTE) is a sub-section of the James Webb Space Telescope, a large infrared space telescope launched on 25 December 2021, consisting...
amateur, and commercial sub-types. Telescopes can be classified by optical design or mechanical design/construction. Telescopes can also be classified by where...
emitted by astronomical objects, just as opticaltelescopes are the main observing instrument used in traditional optical astronomy which studies the light wave...
count rate. The telescope has an energy range of 0.2–10 keV. After Swift has slewed towards a GRB, the UVOT is used to detect an optical afterglow. The...
from severe chromatic aberration. Although reflecting telescopes produce other types of optical aberrations, it is a design that allows for very large...
of four individual telescopes, each equipped with a primary mirror that measures 8.2 meters in diameter. These opticaltelescopes, named Antu, Kueyen...
An extremely large telescope (ELT) is an astronomical observatory featuring an opticaltelescope with an aperture for its primary mirror from 20 metres...
Nordic OpticalTelescope (NOT) is an astronomical telescope located at Roque de los Muchachos Observatory, La Palma in the Canary Islands. The telescope saw...
for optical, infrared and gamma-ray telescopes. It is currently the tenth (see List of highest astronomical observatories) highest opticaltelescope in...
Extremely Large Telescope Giant Magellan Telescope List of opticaltelescopes List of largest optical reflecting telescopes Thirty Meter Telescope Gilmozzi,...
of telescopes List of largest optical reflecting telescopes List of largest opticaltelescopes in the 20th century List of largest opticaltelescopes in...
Vatican Advanced Technology Telescope (VATT), is a Gregorian telescope observing in the optical and infrared situated on Mount Graham in southeast Arizona...
The Southern African Large Telescope (SALT) is a 9.2-metre opticaltelescope designed mainly for spectroscopy. It consists of 91 hexagonal mirror segments...
will be the largest Gregorian telescope ever built observing in optical and mid-infrared (320–25000 nm) light. The telescope uses seven of the world’s largest...
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