[{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","@id":"https:\/\/wiki.edu.vn\/en\/wiki41\/dunsink-observatory-wikipedia\/#BlogPosting","mainEntityOfPage":"https:\/\/wiki.edu.vn\/en\/wiki41\/dunsink-observatory-wikipedia\/","headline":"Dunsink Observatory – Wikipedia","name":"Dunsink Observatory – Wikipedia","description":"before-content-x4 Observatory (1785-) near Dublin, Ireland after-content-x4 The Dunsink Observatory is an astronomical observatory established in 1785 in the townland","datePublished":"2022-12-10","dateModified":"2022-12-10","author":{"@type":"Person","@id":"https:\/\/wiki.edu.vn\/en\/wiki41\/author\/lordneo\/#Person","name":"lordneo","url":"https:\/\/wiki.edu.vn\/en\/wiki41\/author\/lordneo\/","image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/c9645c498c9701c88b89b8537773dd7c?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/c9645c498c9701c88b89b8537773dd7c?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"Enzyklop\u00e4die","logo":{"@type":"ImageObject","@id":"https:\/\/wiki.edu.vn\/wiki4\/wp-content\/uploads\/2023\/08\/download.jpg","url":"https:\/\/wiki.edu.vn\/wiki4\/wp-content\/uploads\/2023\/08\/download.jpg","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/thumb\/1\/1b\/Dunsink_observatory.jpg\/300px-Dunsink_observatory.jpg","url":"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/thumb\/1\/1b\/Dunsink_observatory.jpg\/300px-Dunsink_observatory.jpg","height":"197","width":"300"},"url":"https:\/\/wiki.edu.vn\/en\/wiki41\/dunsink-observatory-wikipedia\/","wordCount":2373,"articleBody":"     (adsbygoogle = window.adsbygoogle || []).push({});before-content-x4Observatory (1785-) near Dublin, Ireland         (adsbygoogle = window.adsbygoogle || []).push({});after-content-x4The Dunsink Observatory is an astronomical observatory established in 1785 in the townland of Dunsink in the outskirts of the city of Dublin, Ireland.[1]Dunsink’s most famous director was William Rowan Hamilton, who, amongst other things, discovered quaternions, the first non-commutative algebra form, while walking from the observatory to the city with his wife. The annual Hamilton Walk that commemorates this discovery begins at the observatory. He is also renowned for his Hamiltonian formulation of dynamics.       (adsbygoogle = window.adsbygoogle || []).push({});after-content-x4Table of ContentsHistory[edit]Directors of the observatory[edit]In fiction[edit]See also[edit]References[edit]Sources[edit]Citations[edit]External links[edit]History[edit]The observatory was established by an endowment of \u00a33,000 in the will of Francis Andrews, who was Provost of Trinity College Dublin at his death on 18 June 1774. The site was established on the south slope of a low hill in the townland of Dunsink, 84m above sea level.[2] The South Telescope, a 12-inch Grubb instrument, is a refracting (i.e. it uses lens) telescope built by Thomas Grubb of Dublin, completed in 1868.[3] The achromatic lens, with an aperture of 11.75 inches, was donated by Sir James South in 1862, who had purchased the lens from Cauchoix of Paris 30 years earlier.[4] He had intended it for a large but troubled equatorial that came to fruition in the 1830s, but was dismantled around 1838.[5][6] (See also Great refractors)The entry for the observatory in Thom’s Directory (1850) gives the following account of the observatory,::ASTRONOMICAL OBSERVATORY OF THE UNIVERSITY OF DUBLIN, DUNSINKAstronomer Royal, Sir William Rowan Hamilton, A.M., LL.D.Assistant Astronomer, Charles Thomson, esq.This Observatory, endowed by Francis Andrews, esq., LL.D., Provost of Trinity College, and erected in 1785, was placed, by statute, in 1791, under the management of the “Royal Astronomer of Ireland,” an appointment first filled by Dr. Henry Ussher, and subsequently by Dr. Brinkley, Bishop of Cloyne.The Institution is amply furnished with astronomical instruments, and is open to all persons interested in astronomical science, on introduction to the resident Assistant. It is situated in Lat. 53\u00b0 23′ 13″ N., Long. 6\u00b0 20′ 15″ W.[1]Dublin Mean Time, the official time in Ireland from 1880, was the mean solar time at Dunsink, just as Greenwich Mean Time (GMT) was the mean solar time at Greenwich Royal Observatory near London.[7] In 1916, Ireland moved to GMT. In 1936, Trinity College stopped maintaining the observatory and rented out the land.       (adsbygoogle = window.adsbygoogle || []).push({});after-content-x4\u00c9amon de Valera, who had driven the establishment of the DIAS in 1940, added a School of Cosmic Physics to it in 1947, partly in order to revive the observatory, for which it was given responsibility.The named chair Andrews Professorship of Astronomy was associated with the directorship of Dunsink Observatory during the time that the observatory was part of Trinity College Dublin (TCD).By the late 20th century, the city encroached ever more on the observatory, which compromised the seeing. The telescope, no longer “state of the art”, is now used mainly for public ‘open nights’.The observatory is currently part of the Dublin Institute for Advanced Studies (DIAS). It provides accommodation for visiting scientists and is also used for conferences and public outreach events. Public talks on astronomy and astrophysics are given regularly at the observatory by professional and amateur astronomers. Stargazing events are also held using the Grubb telescope.Directors of the observatory[edit]DatesNameOther titlesNotes1783\u20131790Rev. Henry UssherAndrews Professor of AstronomyDied in office1792\u20131827Rev. John BrinkleyAndrews Professor of Astronomy, Royal Astronomer of Ireland (from 1793)Appointed Bishop of Cloyne in 18261827\u20131865Sir William Rowan HamiltonAndrews Professor of Astronomy, Royal Astronomer of IrelandAppointed as a 21-year-old undergraduate. In addition to astronomy he worked on mathematics. He developed what is now known as Hamiltonian mechanics, and the system of quaternions, having discovered them in 1843. He died in office.1865\u20131874Franz Br\u00fcnnowAndrews Professor of Astronomy, Royal Astronomer of IrelandRetired due to failing health and eyesight1874\u20131892Sir Robert Stawell BallAndrews Professor of Astronomy, Royal Astronomer of IrelandIn 1892 became Lowndean Professor of Astronomy and Geometry at Cambridge1892\u20131897Arthur Alcock RambautAndrews Professor of Astronomy, Royal Astronomer of IrelandIn 1897 became Radcliffe Observer at Oxford1897\u20131906Charles Jasper JolyAndrews Professor of Astronomy, Royal Astronomer of IrelandDied in office1906\u20131912Sir Edmund Taylor WhittakerAndrews Professor of Astronomy, Royal Astronomer of IrelandIn 1911 became a professor at Edinburgh1912\u20131921Henry Crozier Keating PlummerAndrews Professor of Astronomy, Royal Astronomer of IrelandIn 1921 became professor of mathematics at the Artillery College in Woolwich1921\u20131936Charles MartinActing Director, assisted by F J O’Connor (1908-1987). Died in office1936\u20131947Vacant\u00a0No astronomical work was done1947\u20131957Hermann Alexander Br\u00fcckDirector of DIAS School of Cosmic PhysicsIn 1957 became Astronomer Royal for Scotland1958\u20131963Mervyn Archdall EllisonDirector of DIAS School of Cosmic PhysicsDied in office1964\u20131992Patrick Arthur WaymanAndrews Professor of Astronomy (from 1984, honorary), Director of DIAS School of Cosmic PhysicsRetired, with a short gap before the next appointment.1994\u20132007Evert MeursSenior Professor DIASRetired2007\u20132018Luke DruryAndrews Professor of Astronomy (honorary), Director of DIAS School of Cosmic PhysicsRetired2018\u2013presentPeter T. GallagherSenior Professor and Head of Astronomy and Astrophysics, DIASIn fiction[edit]The observatory is one of the locations featured in the book, The Coroner’s Daughter by Andrew Hughes, which was selected as the Dublin UNESCO City of Literature One City One Book for 2023.[8]See also[edit]References[edit]Sources[edit]Citations[edit]^ a b Alexander Thom, Irish Almanac and Official Directory 7th ed., 1850 p. 258. Retrieved: 2011-02-22.^ Ordnance Survey Map Archived 2012-08-29 at the Wayback Machine. Select Wind Report for elevation. Retrieved: 2011-02-22.^ The South Telescope of Dunsink Observatory Authors: Wayman, P. A. Journal: Irish Astronomical Journal, vol. 8(8), p. 274 Bibliographic Code: 1968IrAJ….8..274W^ History of the Cauchoix objective^ “The Observatory of the Late Sir James South”. Astronomical Register. 8: 196\u2013199. 1870. Bibcode:1870AReg….8..196.^ Dictionary of National Biography, 1885-1900, Volume 53, “South, James”, by Agnes Mary Clerke (WikiSource 2010)^ Dyson, F. W. (1916). “Standard time in Ireland”. The Observatory. 39 (3): 467\u2013468.^ Halpin, Hayley (12 October 2022). “A mystery novel set during 1816 chosen as the 2023 One Dublin One Book”. TheJournal.ie. Retrieved 15 October 2022.External links[edit]Coordinates: 53\u00b023\u203213.5\u2033N 06\u00b020\u203215.2\u2033W\ufeff \/ \ufeff53.387083\u00b0N 6.337556\u00b0W\ufeff \/ 53.387083; -6.337556     (adsbygoogle = window.adsbygoogle || []).push({});after-content-x4"},{"@context":"http:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"https:\/\/wiki.edu.vn\/en\/wiki41\/#breadcrumbitem","name":"Enzyklop\u00e4die"}},{"@type":"ListItem","position":2,"item":{"@id":"https:\/\/wiki.edu.vn\/en\/wiki41\/dunsink-observatory-wikipedia\/#breadcrumbitem","name":"Dunsink Observatory – Wikipedia"}}]}]