A phase telescope or Bertrand lens is an optical device used in aligning the various optical components of a light microscope. In particular it allows...

The James Webb Space Telescope (JWST) is a space telescope designed to conduct infrared astronomy. As the largest telescope in space, it is equipped with...

consists of two or more separate telescopes that combine their signals, offering a resolution equivalent to that of a telescope of diameter equal to the largest...

related to Overwhelmingly Large Telescope at Wikimedia Commons The ESO 100-m optical telescope concept OWL BLUE BOOK – Phase A design report ESO – ELT The...

construction of the telescope to start, estimated to cost around one billion euros for the first construction phase. The first stone of the telescope was ceremonially...

Nancy Grace Roman Space Telescope (shortened as the Roman Space Telescope, Roman, or RST) is a NASA infrared space telescope in development and scheduled...

Subaru Telescope (すばる望遠鏡, Subaru Bōenkyō) is the 8.2-metre (320 in) telescope of the National Astronomical Observatory of Japan, located at the Mauna Kea...

radio telescope is a specialized antenna and radio receiver used to detect radio waves from astronomical radio sources in the sky. Radio telescopes are...

The Very Large Telescope (VLT) is an astronomical facility operated since 1998 by the European Southern Observatory, located on Cerro Paranal in the Atacama...

The history of the telescope can be traced to before the invention of the earliest known telescope, which appeared in 1608 in the Netherlands, when a...

Kilometre Array (SKA) Radio Telescope in Africa, and the locally designed and built MeerKAT was incorporated into the first phase of the SKA. MeerKAT was...

The Newtonian telescope, also called the Newtonian reflector or just a Newtonian, is a type of reflecting telescope invented by the English scientist...

This is a list of radio telescopes – over one hundred – that are or have been used for radio astronomy. The list includes both single dishes and interferometric...

Australia and the International LOFAR Telescope, spread across Europe with a core in the Netherlands. The construction phase of the project began on 5 December...

Aperture Spherical Telescope (FAST; Chinese: 五百米口径球面射电望远镜), nicknamed Tianyan (天眼, lit. "Sky's/Heaven's Eye"), is a radio telescope located in the Dawodang...

The Hubble Space Telescope (HST or Hubble) is a space telescope that was launched into low Earth orbit in 1990 and remains in operation. It was not the...

The Lovell Telescope (/ˈlʌvəl/ LUV-əl) is a radio telescope at Jodrell Bank Observatory, near Goostrey, Cheshire, in the north-west of England. When construction...

A refracting telescope (also called a refractor) is a type of optical telescope that uses a lens as its objective to form an image (also referred to a...

interferometer or telescope array is a set of separate telescopes, mirror segments, or radio telescope antennas that work together as a single telescope to provide...

contains two historically important telescopes: the 100-inch (2.5 m) Hooker telescope, which was the largest aperture telescope in the world from its completion...

presents its new phase when it is between the Earth and the Sun. Since the planet has an atmosphere it can be seen at new in a telescope by the halo of...

position of the eyepiece diaphragm) either directly or by using a phase telescope/Bertrand lens. The light source (e.g. the bulb filament) and the edges...

As of 2018, the Baikal telescope continued to operate and to be developed. On 13 March 2021, the first phase of the telescope, GVD-I, was completed. It...

great day for planet Earth". The telescope was confirmed to be receiving power, starting a two-week deployment phase of its parts and traveling to its...

The Allen Telescope Array (ATA), formerly known as the One Hectare Telescope (1hT), is a radio telescope array dedicated to astronomical observations and...

analyzer, to the light path between objective and eyepiece Adding a phase telescope, also known as a Bertrand lens, which allows the viewer to see conoscopic...

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...

Murriyang, the 64 m CSIRO Parkes Radio Telescope also known as "The Dish", along with two smaller radio telescopes. The 64 m dish was one of several radio...

flight in which the telescope door was fully opened. This phase lasted for two minutes of the 79-minute flight. SOFIA's telescope saw first light on May...

objects. Phased Array Feeds (PAF) have recently been used at the focus of radio telescopes to provide many beams, giving the radio telescope a very wide...