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Jodrell Bank Observatory () in
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, England, hosts a number of
radio telescope A 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 main observing instrument used in radio astronomy, which studies the radio frequency ...
s as part of the Jodrell Bank Centre for Astrophysics at the University of Manchester. The
observatory An observatory is a location used for observing terrestrial, marine, or celestial events. Astronomy, climatology/meteorology, geophysical, oceanography and volcanology are examples of disciplines for which observatories have been constructed. His ...
was established in 1945 by
Bernard Lovell Sir Alfred Charles Bernard Lovell (31 August 19136 August 2012) was an English physicist and radio astronomer. He was the first director of Jodrell Bank Observatory, from 1945 to 1980. Early life and education Lovell was born at Oldland Comm ...
, a radio astronomer at the university, to investigate cosmic rays after his work on radar in the Second World War. It has since played an important role in the research of meteoroids,
quasar A quasar is an extremely Luminosity, luminous active galactic nucleus (AGN). It is pronounced , and sometimes known as a quasi-stellar object, abbreviated QSO. This emission from a galaxy nucleus is powered by a supermassive black hole with a m ...
s,
pulsar A pulsar (from ''pulsating radio source'') is a highly magnetized rotating neutron star that emits beams of electromagnetic radiation out of its magnetic poles. This radiation can be observed only when a beam of emission is pointing toward Ea ...
s,
masers A maser (, an acronym for microwave amplification by stimulated emission of radiation) is a device that produces coherent electromagnetic waves through amplification by stimulated emission. The first maser was built by Charles H. Townes, James ...
and gravitational lenses, and was heavily involved with the tracking of space probes at the start of the Space Age. The main telescope at the observatory is the Lovell Telescope. Its diameter of makes it the third largest steerable radio telescope in the world. There are three other active telescopes at the observatory; the
Mark II Mark II or Mark 2 often refers to the second version of a product, frequently military hardware. "Mark", meaning "model" or "variant", can be abbreviated "Mk." Mark II or Mark 2 may refer to: Military and weaponry * 16"/50 caliber Mark 2 gun ...
, and and 7 m diameter radio telescopes. Jodrell Bank Observatory is the base of the Multi-Element Radio Linked Interferometer Network (MERLIN), a National Facility run by the University of Manchester on behalf of the Science and Technology Facilities Council. The Jodrell Bank Visitor Centre and an arboretum are in
Lower Withington Lower Withington is a civil parish and village in the unitary authority of Cheshire East and the ceremonial county of Cheshire, England. At the 2001 census, it had a total population of 492. It contains a tin tabernacle church and a brick-buil ...
and the Lovell Telescope and the observatory near
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and Holmes Chapel. The observatory is reached from the A535. The Crewe to Manchester Line passes by the site, and Goostrey station is a short distance away. In 2019, the observatory became a UNESCO World Heritage Site.


Early years

Jodrell Bank was first used for academic purposes in 1939 when the University of Manchester's
Department of Botany Department may refer to: * Departmentalization, division of a larger organization into parts with specific responsibility Government and military * Department (administrative division), a geographical and administrative division within a country, ...
purchased three fields from the Leighs. It is named from a nearby rise in the ground, Jodrell Bank, which was named after William Jauderell, whose descendants lived at the
mansion A mansion is a large dwelling house. The word itself derives through Old French from the Latin word ''mansio'' "dwelling", an abstract noun derived from the verb ''manere'' "to dwell". The English word '' manse'' originally defined a property l ...
that is now Terra Nova School. The site was extended in 1952 by the purchase of a farm from George Massey on which the Lovell Telescope was built.Lovell, ''The Story of Jodrell Bank'' The site was first used for
astrophysics Astrophysics is a science that employs the methods and principles of physics and chemistry in the study of astronomical objects and phenomena. As one of the founders of the discipline said, Astrophysics "seeks to ascertain the nature of the h ...
in 1945, when Bernard Lovell used some equipment left over from World War II, including a gun laying radar, to investigate cosmic rays.Lovell, ''The Story of Jodrell Bank'', p. 2 The equipment was a GL II radar system working at a wavelength of 4.2 m, provided by
J. S. Hey James Stanley Hey (3 May 1909 – 27 February 2000) was an English physicist and radio astronomer. With the targeted application of radar technology for astronomical research, he laid the basis for the development of radio astronomy. While work ...
.Astronomer by Chance, p. 110Gunn, 2005 He intended to use the equipment in Manchester, but
electrical interference Electromagnetic interference (EMI), also called radio-frequency interference (RFI) when in the radio frequency spectrum, is a disturbance generated by an external source that affects an electrical circuit by electromagnetic induction, electrost ...
from the trams on Oxford Road prevented him from doing so. He moved the equipment to Jodrell Bank, south of the city, on 10 December 1945.Lovell, ''The Story of Jodrell Bank'', p. 3 Lovell's main research was transient radio echoes, which he confirmed were from ionized meteor trails by October 1946.Lovell, ''The Story of Jodrell Bank'', p. 9 The first staff were Alf Dean and Frank Foden who observed meteors with the naked eye while Lovell observed the electromagnetic signal using equipment. The first time Lovell turned the radar on – 14 December 1945 – the Geminids
meteor shower A meteor shower is a celestial event in which a number of meteors are observed to radiate, or originate, from one point in the night sky. These meteors are caused by streams of cosmic debris called meteoroids entering Earth's atmosphere at extre ...
was at a maximum. Over the next few years, Lovell accumulated more ex-military radio hardware, including a portable cabin, known as a "Park Royal" in the military (see
Park Royal Vehicles Park Royal Vehicles was one of Britain's leading coachbuilders and bus manufacturers, based at Park Royal, Abbey Road, in west London. With origins dating back to 1889, the company also had a Leeds-based subsidiary, Charles H. Roe. Labour pr ...
). The first permanent building was near to the cabin and was named after it. Jodrell Bank is primarily used for investigating radio waves from the planets and stars.


Searchlight telescope

A searchlight was loaned to Jodrell Bank in 1946 by the army;Lovell, ''The Story of Jodrell Bank'', p. 10 a broadside array, was constructed on its mount by
J. Clegg ''J. The Jewish News of Northern California'', formerly known as ''Jweekly'', is a weekly print newspaper in Northern California, with its online edition updated daily. It is owned and operated by San Francisco Jewish Community Publications In ...
. It consisted of 7 elements of Yagi antennas.Astronomer by Chance, p. 129 It was used for astronomical observations in October 1946.Astronomer by Chance, p. 128 On 9 and 10 October 1946, the telescope observed ionisation in the atmosphere caused by meteors in the Giacobinids meteor shower. When the antenna was turned by 90 degrees at the maximum of the shower, the number of detections dropped to the background level, proving that the transient signals detected by radar were from meteors. The telescope was then used to determine the radiant points for meteors. This was possible as the echo rate is at a minimum at the radiant point, and a maximum at 90 degrees to it. The telescope and other receivers on the site studied the Aurora (astronomy), auroral streamers that were visible in early August 1947.Lovell, ''The Story of Jodrell Bank'', p. 15Astronomer by Chance, p. 186


Transit Telescope

The Transit Telescope was a parabolic reflector zenith telescope built in 1947. At the time, it was the world's largest
radio telescope A 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 main observing instrument used in radio astronomy, which studies the radio frequency ...
. It consisted of a wire mesh suspended from a ring of scaffolding, scaffold poles, which focussed radio signals on a focus (optics), focal point above the ground. The telescope mainly looked directly upwards, but the direction of the beam could be changed by small amounts by tilting the mast to change the position of the focal point. The focal mast was changed from timber to steel before construction was complete. The telescope was replaced by the steerable Lovell Telescope and the
Mark II Mark II or Mark 2 often refers to the second version of a product, frequently military hardware. "Mark", meaning "model" or "variant", can be abbreviated "Mk." Mark II or Mark 2 may refer to: Military and weaponry * 16"/50 caliber Mark 2 gun ...
telescope was subsequently built at the same location. The telescope could map a ± 15-degree strip around the zenith at 72 and 160 MHz, with a resolution at 160 MHz of 1 degree. (the proposal document for the Lovell Telescope). pp. 4–5 It discovered radio noise from the Andromeda Galaxy, Great Nebula in Andromeda (constellation), Andromeda—the first definite detection of an extragalactic radio source—and the remains of Tycho's Supernova in the radio frequency; at the time it had not been discovered by optical astronomy.


Lovell Telescope

The "Mark I" telescope, now known as the Lovell Telescope, was the world's largest steerable dish radio telescope, in diameter, when it was constructed in 1957; it is now the third largest, after the Green Bank Telescope, Green Bank telescope in West Virginia and the Effelsberg 100-m Radio Telescope, Effelsberg telescope in Germany. Part of the gun turret mechanisms from the battleships and were reused in the telescope's motor system.Lovell, ''The Story of Jodrell Bank'', p. 29 The telescope became operational in mid-1957, in time for the launch of the Soviet Union's Sputnik 1, the world's first artificial satellite. The telescope was the only one able to track Sputnik's booster rocket by radar; first locating it just before midnight on 12 October 1957, eight days after its launch.Lovell, ''The Story of Jodrell Bank'', p. 196Lovell, ''Astronomer by Chance'', p. 262 In the following years, the telescope tracked various space probes. Between 11 March and 12 June 1960, it tracked the United States' NASA-launched Pioneer 5 probe. The telescope sent commands to the probe, including those to separate it from its carrier rocket and turn on its more powerful transmitter when the probe was eight million miles away. It received data from the probe, the only telescope in the world capable of doing so. In February 1966, Jodrell Bank was asked by the Soviet Union to track its unmanned Moon lander Luna 9 and recorded on its Fax, facsimile transmission of photographs from the Moon's surface. The photographs were sent to the British press and published before the Soviets made them public. In 1969, the Soviet Union's Luna 15 was also tracked. A recording of the moment when Jodrell Bank's scientists observed the mission was released on 3 July 2009. With the support of Sir Bernard Lovell, the telescope tracked Russian satellites. Satellite and space probe observations were shared with the US Department of Defense satellite tracking research and development activity at Project Space Track (1957–1961), Project Space Track. Tracking space probes only took a fraction of the Lovell telescope's observing time and the remainder used for scientific observations including using radar to measure the distance to the Moon and to Venus;Lovell, ''Out of the Zenith'', pp. 197–198Lovell, ''Astronomer by Chance'', pp. 277–280 observations of astrophysical masers around star formation, star-forming regions and giant stars; observations of
pulsar A pulsar (from ''pulsating radio source'') is a highly magnetized rotating neutron star that emits beams of electromagnetic radiation out of its magnetic poles. This radiation can be observed only when a beam of emission is pointing toward Ea ...
s (including the discovery of millisecond pulsars and the first pulsar in a globular cluster); observations of
quasar A quasar is an extremely Luminosity, luminous active galactic nucleus (AGN). It is pronounced , and sometimes known as a quasi-stellar object, abbreviated QSO. This emission from a galaxy nucleus is powered by a supermassive black hole with a m ...
s and gravitational lenses (including the detection of the first gravitational lensLovell, ''Astronomer by Chance'', pp. 297–301 and the first Einstein ring). The telescope has also been used for SETI observations.


Mark II and III telescopes

The Mark II is an elliptical radio telescope, with a major axis and a minor axis of . It was constructed in 1964. As well as operating as a standalone telescope, it has been used as an interferometer with the Lovell Telescope, and is now primarily used as part of the MERLIN project. The Mark III (radio telescope), Mark III telescope, the same size as the Mark II, was constructed to be transportablePalmer and Rowson (1968) but it was never moved from Wardle, Cheshire, Wardle, near Nantwich, where it was used as part of MERLIN. It was built in 1966 and decommissioned in 1996.


Mark IV, V and VA telescope proposals

The Mark IV, V and VA telescope proposals were put forward in the 1960s through to the 1980s to build even larger radio telescopes. The Mark IV proposal was for a diameter standalone telescope, built as a national project. The Mark V proposal was for a moveable telescope. The concept of this proposal was for a telescope on a railway line adjoining Jodrell Bank, but concerns about future levels of interference meant that a site in Wales would have been preferable. Design proposals by Husband and Co and Freeman Fox, who had designed the Parkes Observatory telescope were put forward. The Mark VA was similar to the Mark V but with a smaller dish of and a design using prestressed concrete, similar to the Mark II (the previous two designs more closely resembled the Lovell telescope).Lovell, ''Jodrell Bank Telescopes'' None of the proposed telescopes was constructed, although design studies were carried out and scale models were made, partly because of the changing political climate, partly to the financial constraints of astronomical research in the UK and it became necessary to upgrade the Lovell Telescope to the Mark IA, which overran in terms of cost.


Other single dishes

A 50 ft (15 m) alt-azimuth dish was constructed in 1964 for astronomical research and to track the Zond 1, Zond 2, Ranger 6 and Ranger 7 space probes and Apollo 11. After an accident that irreparably damaged the 50 ft telescope's surface, it was demolished in 1982 and replaced with a more accurate telescope, the "42 ft". The 42 ft (12.8 m) dish is mainly used to observe pulsars, and continually monitors the Crab Pulsar. When the 42 ft was installed, a smaller dish, the "7 m" (actually 6.4 m, or 21 ft, in diameter) was installed and is used for undergraduate teaching. The 42 ft and 7 m telescopes were originally used at the Woomera Rocket Testing Range in Australia. The 7 m was originally constructed in 1970 by Marconi Company. A Polar Axis telescope was built in 1962. It had a circular 50 ft (15.2 m) dish on a polar mount,Lovell, ''Jodrell Bank Telescopes'', p. 232 and was mostly used for moon radar experiments. It has been decommissioned. An reflecting optical telescope was donated to the observatory in 1951Pullan, ''A history of the University of Manchester 1951–73'', p. 37 but was not used much, and was donated to the Salford Astronomical Society around 1971.


MERLIN

The Multi-Element Radio Linked Interferometer Network (MERLIN) is an array of
radio telescope A 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 main observing instrument used in radio astronomy, which studies the radio frequency ...
s spread across England and the Welsh borders. The array is run from Jodrell Bank on behalf of the Science and Technology Facilities Council as a National Facility. The array consists of up to seven
radio telescope A 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 main observing instrument used in radio astronomy, which studies the radio frequency ...
s and includes the Lovell Telescope, the Mark II, Cambridge, Defford, Knockin, Darnhall, and Pickmere (previously known as Tabley Superior, Tabley). The longest baseline is and MERLIN can operate at Frequency, frequencies between 151 Megahertz, MHz and 24 Hertz, GHz. At a wavelength of 6 cm (5 GHz frequency), MERLIN has a resolution of 50 milliarcseconds which is comparable to that of the Hubble Space Telescope, HST at optical wavelengths.


Very Long Baseline Interferometry

Jodrell Bank has been involved with Very Long Baseline Interferometry (VLBI) since the late 1960s; the Lovell telescope took part in the first transatlantic interferometer experiment in 1968, with other telescopes at Algonquin Radio Observatory, Algonquin and Dominion Radio Astrophysical Observatory, Penticton in Canada.Lovell, ''Out of the Zenith'', pp. 67–68 The Lovell Telescope and the Mark II telescopes are regularly used for VLBI with telescopes across Europe (the European VLBI Network), giving a resolution of around 0.001 arcseconds.


Square Kilometre Array

In April 2011, Jodrell Bank was named as the location of the control centre for the planned Square Kilometre Array, or SKA Project Office (SPO). The SKA is planned by a collaboration of 20 countries and when completed, is intended to be the most powerful
radio telescope A 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 main observing instrument used in radio astronomy, which studies the radio frequency ...
ever built. In April 2015 it was announced that Jodrell Bank would be the permanent home of the SKA headquarters for the period of operation expected for the telescope (over 50 years).


Research

The Jodrell Bank Centre for Astrophysics, of which the Observatory is a part, is one of the largest astrophysics research groups in the UK. About half of the research of the group is in the area of radio astronomy—including research into
pulsar A pulsar (from ''pulsating radio source'') is a highly magnetized rotating neutron star that emits beams of electromagnetic radiation out of its magnetic poles. This radiation can be observed only when a beam of emission is pointing toward Ea ...
s, the Cosmic Microwave Background Radiation, gravitational lenses, active galaxy, active galaxies and astrophysical masers. The group also carries out research at different wavelengths, looking into star formation and evolution, planetary nebula and astrochemistry. The first director of Jodrell Bank was
Bernard Lovell Sir Alfred Charles Bernard Lovell (31 August 19136 August 2012) was an English physicist and radio astronomer. He was the first director of Jodrell Bank Observatory, from 1945 to 1980. Early life and education Lovell was born at Oldland Comm ...
, who established the observatory in 1945. He was succeeded in 1980 by Francis Graham-Smith, Sir Francis Graham-Smith, followed by Rod Davies, Professor Rod Davies around 1990 and Andrew Lyne, Professor Andrew Lyne in 1999. Phil Diamond, Professor Phil Diamond took over the role on 1 October 2006, at the time when the Jodrell Bank Centre for Astrophysics was formed. Prof Ralph Spencer was Acting Director during 2009 and 2010. In October 2010, Prof. Albert Zijlstra became Director of the Jodrell Bank Centre for Astrophysics. Professor Lucio Piccirillo was the Director of the Observatory from Oct 2010 to Oct 2011. Prof. Simon Garrington is the JBCA Associate Director for the Jodrell Bank Observatory. In 2016, Prof. Michael Garrett was appointed as the inaugural Sir Bernard Lovell chair of Astrophysics and Director of Jodrell Bank Centre for Astrophysics. As Director JBCA, Prof. Garrett also has overall responsibility for Jodrell Bank Observatory. In May 2017 Jodrell Bank entered into a partnership with the Breakthrough Listen initiative and will share information with Jodrell Bank's team, who wish to conduct an independent SETI search via its 76-m radio telescope and e-MERLIN array. There is an active development programme researching and constructing telescope receivers and instrumentation. The observatory has been involved in the construction of several Cosmic Microwave Background experiments, including the Tenerife Experiment, which ran from the 1980s to 2000, and the amplifiers and cryostats for the Very Small Array. It has also constructed the front-end modules of the 30 and 44 GHz receivers for the Planck (spacecraft), Planck spacecraft. Receivers were also designed at Jodrell Bank for the Parkes Observatory, Parkes Telescope in Australia.


Visitor facilities, and events

A visitors' centre, opened on 19 April 1971 by the Duke of Devonshire,Lovell, ''Out of the Zenith'' attracted around 120,000 visitors per year. It covered the history of Jodrell Bank and had a planetarium and 3D theatre hosting simulated trips to Mars. Asbestos in the visitors' centre buildings led to its demolition in 2003 leaving a remnant of its far end. A Tent#Marquees and larger tents, marquee was set up in its grounds while a new science centre was planned. The plans were shelved when Victoria University of Manchester and UMIST merged to become the University of Manchester in 2004, leaving the interim centre, which received around 70,000 visitors a year. In October 2010, work on a new visitor centre started and the Jodrell Bank Discovery Centre opened on 11 April 2011. It includes an entrance building, the Planet Pavilion, a Space Pavilion for exhibitions and events, a glass-walled cafe with a view of the Lovell Telescope and an outdoor dining area, an education space, and landscaped gardens including the Galaxy Maze. A large orrery was installed in 2013. It does not, however, include a planetarium, though a small inflatable planetarium dome has been in use on the site in recent years. The visitor centre is open to daily and organises public outreach events, including public lectures, star parties, and "ask an astronomer" sessions. A path around the Lovell telescope is approximately 20 m from the telescope's outer railway, information boards explain how the telescope works and the research that is done with it. The arboretum, created in 1972, houses the UK's national collections of crab apple ''Malus'' and Sorbus, mountain ash ''Sorbus'' species, and the Heather Society's ''Calluna'' collection. The arboretum also has a small Solar System model, scale model of the Solar System, the scale is approximately 1:5,000,000,000. At Jodrell Bank, as part of the ''SpacedOut'' project, is the Sun in a 1:15,000,000 scale model of the Solar System covering Britain. On 7 July 2010, it was announced that the observatory was being considered for the 2011 United Kingdom Tentative List for World Heritage Site status. It was announced on 22 March 2011 that it was on the UK government's shortlist. In January 2018, it became the UK's candidate for World Heritage status. In July 2011 the visitor centre and observatory hosted "Live from Jodrell Bank - Transmission 001" – a rock concert with bands including The Flaming Lips, British Sea Power, Wave Machines, OK GO and Alice Gold. On 23 July 2012, Elbow performed live at the observatory and filmed a documentary of the event and the facility which was released as a live CD/DVD of the concert. On 7 July 2013, Transmission 5 featured New Order, Johnny Marr, The Whip, Public Service Broadcasting, Jake Evans and Hot Vestry. On 31 August 2013, Jodrell Bank hosted a concert performed by the Halle Orchestra to commemorate what would have been Lovell's 100th birthday. As well as a number of operatic performances during the day, the evening Halle performance saw numbers such as themes from ''Star Trek'', ''Star Wars'' and ''Doctor Who'' among others. The main Lovell telescope was rotated to face the onlooking crowd and used as a huge projection screen showing various animated planetary effects. During the interval the 'screen' was used to show a history of Lovell's work and Jodrell Bank. There is an astronomy podcast from the observatory, named ''The Jodcast''. The BBC television programme ''Stargazing Live'' is hosted in the control room of the observatory. The programme has had four series, in January 2011, 2012, 2013 and 2014. Since 2016, the observatory hosted Bluedot Festival, Bluedot, a music and science festival, featuring musical acts such as Public Service Broadcasting (band), Public Service Broadcasting, The Chemical Brothers, as well as talks by scientists and scientific communicators such as Jim Al-Khalili and Richard Dawkins.


Threat of closure

On 3 March 2008, it was reported that Britain's Science and Technology Facilities Council (STFC), faced with an £80 million shortfall in its budget, was considering withdrawing its planned £2.7 million annual funding of Jodrell Bank's MERLIN#e-MERLIN, e-MERLIN project. The project, which aimed to replace the microwave links between Jodrell Bank and a number of other radio telescopes with high-bandwidth Optical fiber, fibre-optic cables, greatly increasing the sensitivity of observations, was seen as critical to the survival of the facility.
Bernard Lovell Sir Alfred Charles Bernard Lovell (31 August 19136 August 2012) was an English physicist and radio astronomer. He was the first director of Jodrell Bank Observatory, from 1945 to 1980. Early life and education Lovell was born at Oldland Comm ...
said "It will be a disaster … The fate of the Jodrell Bank telescope is bound up with the fate of e-MERLIN. I don't think the establishment can survive if the e-MERLIN funding is cut". On 9 July 2008, it was reported that, following an independent review, STFC had reversed its initial position and would now guarantee funding of £2.5 million annually for three years.


Fictional references

Jodrell Bank has been mentioned in several works of fiction, including ''Doctor Who'' (''The Tenth Planet'', ''Remembrance of the Daleks'', "The Poison Sky", "The Eleventh Hour (Doctor Who), The Eleventh Hour", "Spyfall (Doctor Who), Spyfall") and "Birthday Boy" by David Baddiel. It was intended to be a filming location for ''Logopolis'' (Tom Baker's final ''Doctor Who'' serial) but budget restrictions prevented this and another location with a superimposed model of a radio telescope was used instead. It was also mentioned in ''The Hitchhiker's Guide to the Galaxy''Adams, ''Hitchhiker's Guide to the Galaxy'', p. 30–31 (as well as The Hitchhiker's Guide to the Galaxy (film), ''The Hitchhiker's Guide to the Galaxy'' film), ''The Creeping Terror'' and ''Meteor (film), Meteor''. Jodrell Bank was also featured heavily in the 1983 music video "Secret Messages (song), Secret Messages" by Electric Light Orchestra and also "Are We Ourselves?" by The Fixx. The Prefab Sprout song Technique (from debut album Swoon) opens with the line "Her husband works at Jodrell Bank/He's home late in the morning". The observatory is the site of several episodes in the novel ''Boneland'', by Alan Garner (2012), and the central character, Colin Whisterfield, is an astrophysicist on its staff.


Appraisal

Since 13 July 1988 the Lovell Telescope has been designated as a Grade I Listed building#England and Wales, listed building. On 10 July 2017 the Mark II (radio telescope), Mark II Telescope was also designated at the same grade. On the same date five other buildings on the site were designated at Grade II; namely the Searchlight Telescope, the Control Building, the Park Royal Building, the Electrical Workshop, and the Link Hut. Grade I is the highest of the three grades of listing, and is applied to buildings that are of "exceptional interest", and Grade II, the lowest grade, is applied to buildings "of special interest". At the 43rd Session of the UNESCO World Heritage Committee in Baku on 7 July 2019, the Jodrell Bank Observatory was adopted as a World Heritage Site on the basis of 4 criteria * Criterion (i): Jodrell Bank Observatory is a masterpiece of human creative genius related to its scientific and technical achievements. * Criterion (ii): Jodrell Bank Observatory represents an important interchange of human values over a span of time and on a global scale on developments * Criterion (iv): Jodrell Bank Observatory represents an outstanding example of a technological ensemble which illustrates a significant stage in human history * Criterion (vi): Jodrell Bank Observatory is directly and tangibly associated with events and ideas of outstanding universal significance.


See also

* Cerro Tololo Inter-American Observatory * Extremely Large Telescope * La Silla Observatory * Llano de Chajnantor Observatory * Paranal Observatory * Very Large Telescope * List of World Heritage Sites in the United Kingdom


References


Books

* * Gunn, A. G. (2005). "Jodrell Bank and the Meteor Velocity Controversy". In ''The New Astronomy: Opening the Electromagnetic Window and Expanding Our View of Planet Earth'', Volume 334 of the Astrophysics and Space Science Library. Part 3, pages 107–118. Springer Netherlands. * * * * * *


Journal articles

*


External links


Jodrell Bank Centre for Astrophysics

Jodrell Bank Visitor Centre

Jodrell Bank Observatory Archives
at University of Manchester Library. {{authority control Jodrell Bank Observatory, Radio observatories Astronomical observatories in England Astronomy institutes and departments Tourist attractions in Cheshire 1945 establishments in the United Kingdom Arboreta in England Botanical gardens in England Gardens in Cheshire Space programme of the United Kingdom Square Kilometre Array World Heritage Sites in England Buildings at the University of Manchester