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Great refractor

Index Great refractor

Great refractor refers to a large telescope with a lens, usually the largest refractor at an observatory with an equatorial mount. [1]

30 relations: Alvan Clark & Sons, Alvan Graham Clark, Asaph Hall Jr., Astrophotography, Craig telescope, Crossley telescope, Dunsink Observatory, Hamburg Observatory, Harvard College Observatory, Heliometer, Hermann Struve, History of the telescope, James South, Lamont–Hussey Observatory, Leibniz Institute for Astrophysics Potsdam, Lens sag, List of largest optical refracting telescopes, List of largest optical telescopes in the 19th century, Observatory of Strasbourg, Otto Wilhelm von Struve, Paris inch, Paris Observatory, Pulkovo Observatory, Refracting telescope, Robert-Aglaé Cauchoix, Shuckburgh telescope, Sirius, William Cranch Bond, William Gravatt, William Livingstone Watson.

Alvan Clark & Sons

Alvan Clark & Sons was an American maker of optics that became famous for crafting lenses for some of the largest refracting telescopes of the 19th and early 20th centuries.

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Alvan Graham Clark

Alvan Graham Clark (July 10, 1832 – June 9, 1897) was an American astronomer and telescope-maker.

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Asaph Hall Jr.

Asaph Hall Jr. (October 6, 1859 – January 12, 1930) was an American astronomer.

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Astrophotography

Astrophotography is a specialized type of photography for recording photos of astronomical objects, celestial events, and areas of the night sky.

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Craig telescope

The Craig telescope was a large telescope built in the 1850s, and while much larger than previous refracting telescopes, it had some problems that hampered its use.

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Crossley telescope

The Crossley telescope is a reflecting telescope located at Lick Observatory in the U.S. state of California.

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Dunsink Observatory

The Dunsink Observatory is an astronomical observatory established in 1785 in the townland of Dunsink near the city of Dublin, Ireland.

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Hamburg Observatory

Hamburg Observatory (Hamburger Sternwarte) is an astronomical observatory located in the Bergedorf borough of the city of Hamburg in northern Germany.

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Harvard College Observatory

The Harvard College Observatory (HCO) is an institution managing a complex of buildings and multiple instruments used for astronomical research by the Harvard University Department of Astronomy.

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Heliometer

A heliometer (from Greek ἥλιος hḗlios "sun" and measure) is an instrument originally designed for measuring the variation of the sun's diameter at different seasons of the year, but applied now to the modern form of the instrument which is capable of much wider use.

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Hermann Struve

Karl Hermann Struve (October 3, 1854 – August 12, 1920) was a Russian astronomer.

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History of the telescope

The earliest known telescope appeared in 1608 in the Netherlands when an eyeglass maker named Hans Lippershey tried to obtain a patent on one.

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James South

Sir James South (October 1785 – 19 October 1867) was a British astronomer.

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Lamont–Hussey Observatory

The Lamont–Hussey Observatory (LHO) was an astronomical observatory owned and operated by the University of Michigan (UM).

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Leibniz Institute for Astrophysics Potsdam

Leibniz Institute for Astrophysics Potsdam (AIP) is a German research institute.

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Lens sag

Lens sag is a problem that sometimes afflicts very large refracting telescopes.

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List of largest optical refracting telescopes

Here is a list of the largest optical refracting telescopes sorted by lens diameter and focal length.

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List of largest optical telescopes in the 19th century

List of largest optical telescopes in the 19th century, are listings of what were, for the time period of the 19th century large optical telescopes.

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Observatory of Strasbourg

The Observatory of Strasbourg is an astronomical observatory in Strasbourg, France.

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Otto Wilhelm von Struve

Otto Wilhelm von Struve (May 7, 1819 (Julian calendar: April 25) – April 14, 1905) was a Russian astronomer.

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Paris inch

The Paris inch or pouce is an archaic unit of length that, among other uses, was common for giving the measurement of lenses.

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Paris Observatory

The Paris Observatory (Observatoire de Paris or Observatoire de Paris-Meudon), a research institution of PSL Research University, is the foremost astronomical observatory of France, and one of the largest astronomical centres in the world.

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Pulkovo Observatory

The Pulkovo Astronomical Observatory (Пу́лковская астрономи́ческая обсервато́рия, official name The Central Astronomical Observatory of the Russian Academy of Sciences at Pulkovo, Гла́вная (Пу́лковская) астрономи́ческая обсервато́рия Росси́йской акаде́мии нау́к; formerly Imperial Observatory at Pulkowo), the principal astronomical observatory of the Russian Academy of Sciences, located 19 km south of Saint Petersburg on Pulkovo Heights above sea level.

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Refracting telescope

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 dioptric telescope).

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Robert-Aglaé Cauchoix

Robert-Aglaé Cauchoix (24 April 1776 – 5 February 1845) was a French optician and instrument maker, whose lenses played a part in the race of the great refractor telescopes in the first half of the 19th century.

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Shuckburgh telescope

The Shuckburgh telescope or Shuckburgh equatorial refracting telescope was a 4.1 inch diameter aperture telescope on an equatorial mount completed in 1791 for Sir George Shuckburgh (1751–1804) in Warwickshire, England, and built by British instrument maker Jesse Ramsden (1735–1800).

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Sirius

Sirius (a romanization of Greek Σείριος, Seirios,."glowing" or "scorching") is a star system and the brightest star in the Earth's night sky.

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William Cranch Bond

William Cranch Bond (9 September 1789 – 29 January 1859) was an American astronomer, and the first director of Harvard College Observatory.

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William Gravatt

William Gravatt FRS (14 July 1806 – 30 May 1866), was a noted English civil engineer and scientific instrument maker.

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William Livingstone Watson

William Livingstone Watson (Kinross, Scotland, 1835-Ayton, Perthshire, Scotland, May 1903) was a Scottish East India merchant and an astronomer.

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Dorpat Great Refractor, Fraunhofer 9-inch refractor, Great Refractor, Great refractors.

References

[1] https://en.wikipedia.org/wiki/Great_refractor

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