|Isaac Newton Telescope|
The INT dome by moonlight
|Organization||Isaac Newton Group of Telescopes|
|Location||Roque de los Muchachos Observatory, La Palma, Canary Islands|
|Wavelength||Optical / infrared|
|Diameter||2. The Isaac Newton Group of Telescopes or ING operates the William Herschel Telescope, Isaac Newton Telescope and Jacobus Kapteyn Telescope Roqué de los Muchachos Observatory is an Astronomical observatory located in the municipality of Garafía on the island of La Palma in the Canary Isla de La Palma (known in English as "La Palma" not to be confused with "Palma" in the Balearic Islands is a Spanish volcanic ocean island The Canary Islands ( English pronunciation kəˈnæriː ˈaɪləndz Spanish: Islas Canarias, ˈizlas kaˈnarjas are a Spanish In Physics wavelength is the distance between repeating units of a propagating Wave of a given Frequency. 54m|
|Focal length||f/3. The focal length of an optical system is a measure of how strongly it converges (focuses or diverges (diffuses Light. 29|
|Mounting||Fork type equatorial|
The Isaac Newton Telescope or INT is a 2. A telescope mount is a mechanical structure which supports a Telescope. Sir Isaac Newton, FRS (ˈnjuːtən 4 January 1643 31 March 1727) Biography Early years See also Isaac Newton's early life and achievements 5m optical telescope run by the ING at Roque de los Muchachos Observatory on La Palma in the Canary Islands. The metre or meter is a unit of Length. It is the basic unit of Length in the Metric system and in the International A telescope is an instrument designed for the observation of remote objects and the collection of Electromagnetic radiation. The Isaac Newton Group of Telescopes or ING operates the William Herschel Telescope, Isaac Newton Telescope and Jacobus Kapteyn Telescope Roqué de los Muchachos Observatory is an Astronomical observatory located in the municipality of Garafía on the island of La Palma in the Canary Isla de La Palma (known in English as "La Palma" not to be confused with "Palma" in the Balearic Islands is a Spanish volcanic ocean island The Canary Islands ( English pronunciation kəˈnæriː ˈaɪləndz Spanish: Islas Canarias, ˈizlas kaˈnarjas are a Spanish It was originally situated at Herstmonceux Castle in Sussex, England, which was the site of the Royal Greenwich Observatory after it moved away from Greenwich due to light pollution. Herstmonceux Castle ( is a Tudor Castle built in brick from 1441 near Herstmonceux, East Sussex, United Kingdom. Sussex is a historic county in South East England corresponding roughly in area to the ancient Kingdom of Sussex. England is a Country which is part of the United Kingdom. Its inhabitants account for more than 83% of the total UK population whilst its mainland The Royal Observatory Greenwich (formerly the Royal Greenwich Observatory or RGO) was commissioned in 1675 by King Charles II, with the It was inaugurated in 1967 by Elizabeth II. For the ship see RMS Queen Elizabeth 2 Elizabeth II (Elizabeth Alexandra Mary Context States headed by Elizabeth II The telescope is now one member of the Isaac Newton Group of Telescopes. The Isaac Newton Group of Telescopes or ING operates the William Herschel Telescope, Isaac Newton Telescope and Jacobus Kapteyn Telescope
However, Herstmonceux suffered from poor weather, and the advent of mass air travel made it plausible for UK astronomers to run an overseas observatory. In 1979, the INT was shipped to La Palma, where it has remained ever since. The move was beset with difficulties, and it is widely recognized that it would have been cheaper to have built a new telescope rather than moving an existing one. As is customary for astronomical telescopes, the telescope foundations were entirely separate from the foundations of the dome and the rest of the structure in order to minimise telescope vibrations from movements of the dome (with an air gap of a few centimeters in between, going down many meters below the telescope platform). A centimetre ( American spelling: centimeter, symbol cm) is a unit of Length in the Metric system, equal to one hundredth When the local construction workers on La Palma saw this air gap, they filled it with concrete under the assumption that this would be helpful (in making it stronger). It was impossible to remove this concrete, and it has been very difficult to keep telescope vibrations at a bearable level as a result.
Today, it is used mostly with the Wide Field Camera (WFC), a four CCD instrument with a field of view of 0. A charge-coupled device ( CCD) is an analog Shift register, that enables the transportation of analog signals (electric charges through successive stages (capacitors 5 square degrees which was commissioned in 1997. The other main instrument available at the INT is the Intermediate Dispersion Spectrograph (IDS), recently re-introduced having been unavailable for a period of several years.
The INT is a Cassegrain telescope, with a 2. The Cassegrain reflector is a combination of two coaxial reflectors used in Cassegrain telescopes and radio antennas First developed in 1672 by Laurent Cassegrain 54m diameter primary mirror and a focal length of 7. A primary mirror (or primary) is the principal Light -gathering surface of a reflective Telescope. The focal length of an optical system is a measure of how strongly it converges (focuses or diverges (diffuses Light. 5m. The mirror weighs 4,361kg, and is supported by a polar disc/fork type equatorial mounting. The total weight of the telescope is around 90 tons. The f/3. 29 Prime focus, used with the WFC, allows an unvignetted field of view of 40 arcminutes (approximately 0. A minute of arc, arcminute, or MOA is a unit of angular measurement, equal to one sixtieth (1/60 of one degree. 3 square degrees). There is also a secondary focal station, the f/15 Cassegrain focus, which possesses a 20 arcminute field of view and is the mount point for the IDS.
The pointing accuracy of the telescope is around 5 arcseconds, but a sophisticated autoguider, which tracks a given guide star and makes small corrections to the telescope tracking, allows a guiding accuracy of better than 0. In Astronomy, a guide star is a reference Star used to accurately maintain the tracking by a Telescope of a heavenly body whose motion across the 3 arcseconds.