Astronomical radio interferometers usually consist either of arrays of parabolic dishes ( e. g., the One-Mile Telescope ), arrays of one-dimensional antennas ( e. g., the Molonglo Observatory Synthesis Telescope ) or two-dimensional arrays of omni-directional dipoles ( e. g., Tony Hewish's Pulsar Array ).

One antenna of the One-Mile Telescope at the observatory

Mullard Radio Astronomy Observatory ( MRAO ) is home to a number of large aperture synthesis radio telescopes, including the One-Mile Telescope, 5-km Ryle Telescope, and the Arcminute Microkelvin Imager.

* The One-Mile Telescope

One antenna of the One-Mile Telescope

The One-Mile Telescope at the Mullard Radio Astronomy Observatory ( MRAO ) is an array of radio telescopes ( 2 fixed and 1 moveable, fully steerable 60-ft-diameter parabolic reflectors operating simultaneously at 1407 MHz and 408 MHz ) designed to perform aperture synthesis interferometry.

The One-Mile Telescope, was the first to use Earth-rotation aperture synthesis ( described by Ryle as " super-synthesis ") and the first to give radio maps with a resolution better than that of the human eye.

* Two antennae of the One-Mile Telescope on Google Maps

no: One-Mile Telescope

It has a similar arrangement to other radio telescopes such as the One-Mile Telescope, Australia Telescope Compact Array and the Ryle Telescope.

The One-Mile Telescope used to produce this catalogue had an angular resolutions of 80 arcseconds and 23 arcseconds at 408 MHz and 1407 MHz respectively, and catalogued radio sources as faint as 2 milli-Janskys, considerably fainter than any previously catalogued radio source.

It is flanked to the northwest by the Cosmic Anisotropy Telescope enclosure and to the south by the One-Mile and Half-Mile Telescopes

One of Titan's most intensive uses was to compute the inverse Fourier Transforms of data from the One-Mile Radio Telescope.

During the late 1960s and early 1970s, as computers ( such as the Titan ) became capable of handling the computationally intensive Fourier transform inversions required, they used aperture synthesis to create a ' One-Mile ' and later a ' 5 km ' effective aperture using the One-Mile and Ryle telescopes, respectively.

He won letters in athletics ( Lincoln University ) and cross country ( Storer College and Lincoln University ), swimming ( Howard University ), and football ( soccer ) ( Lincoln University ); entered to compete in the Half-Mile Race and One-Mile run at the British Empire Games to represent Nigeria, but was rejected by the A. A. A.

Events for children include Kids ’ One-Mile & Half-Mile Fun Runs, Toddler Trot and Diaper Dash.

With the development of fast Internet in the last part of the 20th century along with advances in computer controlled telescope mounts and CCD cameras ' Remote Telescope ' astronomy is now a viable means for amateur astronomers not aligned with major telescope facilities to partake in research and deep sky imaging.

* 1990 – STS-31: The Hubble Space Telescope is launched from the Space Shuttle Discovery.

The Spitzer Science Center ( SSC ), part of the Infrared Processing and Analysis Center located on the Caltech campus, is the data analysis and community support center for NASA's Spitzer Space Telescope.

* 1997 – Space Shuttle Discovery is launched on a mission to service the Hubble Space Telescope.

A writer in " Time's Telescope " ( 1822 ) states that in Yorkshire at eight o ' clock on Christmas Eve the bells greet " Old Father Christmas " with a merry peal, the children parade the streets with drums, trumpets, bells, ( or in their absence, with the poker and shovel, taken from their humble cottage fire ), the yule candle is lighted, and ; " High on the cheerful fire.

The McMath-Pierce Solar Telescope on the facilities is the largest solar telescope in the world and the largest unobstructed reflector ( it doesn't have a secondary mirror in the path of incoming light ).

The ARO 12m Radio Telescope is also in the location.

T Leporis is also a Mira variable observed in detail by ESO's Very Large Telescope Interferometer.

* 2001 – A hydrogen atmosphere is discovered on the extrasolar planet Osiris by the Hubble Space Telescope, the first atmosphere detected on an extrasolar planet.

The largest optical telescope in the world as of 2009 to use a non-segmented single-mirror as its primary mirror is the 8. 2 m ( 8. 7 yards ) Subaru telescope of the National Astronomical Observatory of Japan, located in Mauna Kea Observatory on Hawaii since 1997 ; however, this is not the largest diameter single mirror in a telescope, the U. S ./ German / Italian Large Binocular Telescope has two 8. 4 m ( 9. 2 yards ) mirrors ( which can be used together for interferometric mode ).

Its companion Fomalhaut b was thought to be the first extrasolar planet ever detected by a visible light image, thanks to the Hubble Space Telescope, but infrared observations have since retracted this claim: it is instead a spherical cloud of dust.

The array concept is named the " Allen Telescope Array " ( ATA ) ( formerly, One Hectare Telescope ) after the project's benefactor Paul Allen.

The constellation is the location of the field studied by the COSMOS project, undertaken by the Hubble Space Telescope.

The Guide Star Catalog is an online catalog of stars produced for the purpose of accurately positioning and identifying stars satisfactory for use as guide stars by the Hubble Space Telescope program.

This wavelength of light is impossible to observe on the Earth's surface, but only from space using, e. g., the Spitzer Space Telescope.

< imagemap > File: 1990s decade montage. png | From left, clockwise: The Hubble Space Telescope floats in space after it was taken up in 1990 ; American F-16s and F-15s fly over burning oil fields and the USA Lexie in Operation Desert Storm, also known as the 1991 Gulf War ; The signing of the Oslo Accords on 13 September 1993 ; The World Wide Web gains a public face during the start of decade and as a result gains massive popularity worldwide ; Boris Yeltsin and followers stand on a tank in defiance to the August Coup, which leads to the Soviet Union's dissolution on 26 December 1991 ; Dolly the sheep is the first mammal to be cloned from an adult somatic cell ; The funeral procession of Diana, Princess of Wales, who dies in 1997 from a car crash in Paris, and is mourned by millions ; Hundreds of thousands are killed in the Rwandan Genocide of 1994 .| 420px | thumb

** STS-82: Tune-up and repair work on the Hubble Space Telescope is started by astronauts from Space Shuttle Discovery.

** STS-31: The Hubble Space Telescope is launched aboard Space Shuttle Discovery.

The largest single-dish radio telescope in Europe is the 100-meter diameter antenna in Effelsberg, Germany, which also was the world's largest fully steerable telescope for 30 years until the slightly larger Green Bank Telescope was opened in West Virginia, United States, in 2000.

The third largest fully steerable radio telescope is the 76-metre Lovell Telescope at Jodrell Bank Observatory in Cheshire, England.

A large physically connected radio telescope array is the Giant Metrewave Radio Telescope, located in Pune, India.

* John M. Pierce ( 1886 – 1958 ) was one of the founders of the Springfield Telescope Makers.

Measurements taken by Cyril Hazard and John Bolton during one of the occultations using the Parkes Radio Telescope allowed Maarten Schmidt to optically identify the object and obtain an optical spectrum using the 200-inch Hale Telescope on Mount Palomar.

The next year, Turnbull would further refine the list to the 30 most promising systems out of within one hundred light-years of the Sun, including Tau Ceti ; this will form part of the basis of radio searches with the Allen Telescope Array.

Follow-up observations were made at the Siding Spring Observatory 2. 3m telescope and high-resolution spectra were taken at the European Southern Observatory in Chile, using one of the units of the Very Large Telescope.

Interior of one 8. 2 m Unit Telescope 1 ( UT1 ) named Antu

* Jacobus Kapteyn Telescope ( JKT ) at La Palma, one of the Canary islands

* With the Fermi Gamma-ray Space Telescope, one has the possibility of detecting gamma rays from the freshly accelerated cosmic-ray nuclei at their acceleration site ( the source of the UHECRs ).

A search of this star by the Hubble Space Telescope revealed no stellar companions, although this does not preclude the presence of smaller companions that are below the telescope's detection limit, such as a planet orbiting within one astronomical unit of the star.

Yepun is a Mapuche name given to one of the Very Large Telescope | VLT Unit Telescope in Chile.

In 1970 a bigger telescope ( the Westerbork Synthesis Radio Telescope ) was built in Westerbork, near the old one.

The molecular hydrogen emission, which is seen through infrared spectral analysis using the Spitzer Space Telescope is one of the most turbulent formations of molecular hydrogen ever seen, and the strongest emission originates near the center of the green area in the visible light picture discussed earlier.

On Akers ' third mission in 1993 on STS-61, the fifth flight of Endeavour, he was one of four mission specialists who repaired and upgraded the Hubble Space Telescope on its first servicing mission.

Film historians disagree as to which filmmaker first used a close-up, but one of the best claims is for George Albert Smith in Hove, who used medium close-ups in films as early as 1898 and by 1900 was incorporating extreme close-ups in films such as As Seen Through a Telescope and Grandma's Reading Glass.

It was one of five minor planets included in the 1993 study, Transition Comets -- UV Search for OH Emissions in Asteroids, which was research involving amateur astronomers who were permitted to make use of the Hubble Space Telescope.

This marked the end of the speculum-mirror reflecting telescope, with the last large one, the Great Melbourne Telescope with its 122-cm ( 48-inch ) mirror, being completed in 1867.

He was a co-investigator for the Hopkins Ultraviolet Telescope, one of the instruments of the Astro Observatory.

During Mystery Science Theater 3000: The Movie, one of Mike's mistakes was trying to show off by piloting the Satellite of Love, and ended up crashing into the Hubble Space Telescope before totally destroying it while attempting to get it off the ship.

In 1979, a National Research Council of the National Academy of Sciences report, A Strategy for Space Astronomy and Astrophysics for the 1980s, identified a Shuttle Infrared Telescope Facility ( SIRTF ) as " one of two major astrophysics facilities be developed for Spacelab ," a Shuttle-borne platform.

The Liverpool Telescope is one of the primary players in the Heterogeneous Telescope Networks Consortium, a global collaboration between major research groups in the field of robotic telescopes which seeks a standard for communication between remote telescopes, telescope users, and other scientific resources.

The wonders usually affect the civilization as a whole ( with exceptions, such as Galileo's Telescope which effectively doubles scientific production in the city which it is built ), and can only be built by one civilization.

It was one of five minor planets included in the 1993 study, Transition Comets -- UV Search for OH Emissions in Asteroids, which was research involving amateur astronomers who were permitted to make use of the Hubble Space Telescope.