The need for a separate national meridian for the United States gradually faded, and in 1884, U.S. President Chester A. Arthur called the International Meridian Conference in Washington which selected the meridian of the Royal Observatory at Greenwich as the international Prime Meridian.
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The 32nd meridian of longitude west from Washington is a line of longitude approximately 109°02′48″ west of the Prime Meridian of Greenwich.
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On September 28, 1850, the United States adopted two primary meridians of longitude for officially use: the Greenwich Meridian (through the old Royal Observatory at Greenwich, England) for all nautical and international use, and the Washington Meridian (through the old United States Naval Observatory in Washington, D.C.) for more accurate astronomical and domestic use.
4P/Faye (also known as Faye's Comet or Comet Faye) is a periodic Jupiter-family comet discovered in November 1843 by Hervé Faye at the Royal Observatory in Paris.
On invitation of William III, Peter and part of the mission also went to England in January 1698, where the tsar, visited Gilbert Burnet and Edmond Halley in the Royal Observatory, the Royal Mint, the Royal Society the University of Oxford, and several shipyards and artillery plants.
Jonathan Betts MBE (born 29 January 1955) is Senior Specialist in horology at the Royal Observatory (National Maritime Museum), Greenwich, a horological scholar and author, and an expert on the first marine timekeepers created by John Harrison in the middle of the 18th century.
The establishment of the Macfarlane Observatory in 1757 was before the 1767 appearance of The Nautical Almanac based on the Prime Meridian at Royal Observatory, Greenwich.
Royal Observatory, Cape of Good Hope (merged with the Republic Observatory, Johannesburg, formerly the Union Observatory, to form the South African Astronomical Observatory in 1972)
When he received complaints that the Ravens interfered with observatory work, Charles ordered the re-siting of the Royal Observatory to Greenwich rather than remove the ravens.
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-- when?--> and is now located in the Herschel Collection of the National Maritime Museum, in the Royal Observatory, Greenwich, London.
Jupiter is holding an astrolab of a kind constructed by Georg Hartmann, clearly a symbol for the astronomical studies at the Royal Observatory in Greenwich, while Neptune is holding his usual attribute of a trident.
Some of the telescopes produced by Howard Grubb include the 27-inch refractor for the Vienna Observatory (1878), the 10-inch refractor at Armagh Observatory (1882), the 28-inch refractor at the Royal Observatory, Greenwich - the UK's largest refractor (1893), and the 10-inch refractor at Coats Observatory, Paisley (1898).
Martial Bourdin (1868 - 1894) was a French anarchist, who died on 15 February 1894 when chemical explosives that he was carrying prematurely detonated outside the Royal Observatory in Greenwich Park.
The following year, he joined the Royal Observatory, Edinburgh, where he continued studies of solar activity, including flares and prominences.
Consequently it is critically endangered and naturally survives only in the grounds of the South African Astronomical Observatory in the suburb of Observatory near the foot of Devil's Peak.
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Moraea aristata (Blue-eyed Uintjie or Blouooguintjie in Afrikaans) is a critically endangered species of plant in the genus Moraea, that is endemic to the city of Cape Town and is now restricted to the grounds of the Observatory in the Cape Town suburb of Observatory.
Henry Negretti (1818–1879) and Joseph Zambra (1822–1897) formed a partnership in 1850, thereby founding the firm which would eventually be appointed opticians and scientific instrument makers to Her Majesty Queen Victoria, Prince Albert and Edward VII of the United Kingdom, the Royal Observatory and the British Admiralty.
It was acclaimed by Jonathan Betts, the Senior Curator of Horology at the Royal Observatory, Greenwich as "the nearest approach to perfection by any mechanical timekeeper not employing a vacuum chamber".
When the Royal Observatory, Edinburgh established its outstation at Monte Porzio Catone just south of Rome, Twiss decided to move his Michelson interferometer there.
It was bought by Astronomer Royal Frank Dyson for the Greenwich Observatory.
This expedition, to determine 129° east on the ground, created world-wide scientific interest and involved the cooperation of the Astronomer Royal and the Royal Observatory, Greenwich, with wireless time signals sent by the French wireless Service, that were transmitted from the Lyons astronomical observatory (Observatoire de Lyon) at Saint-Genis-Laval, near Lyons, France, between 17 and 24 November 1920.
At this time Evans had become chief assistant at the Royal Observatory in Cape Town, South Africa.
It was Reinhold's heavily annotated copy of De revolutionibus in the Royal Observatory, Edinburgh that started Owen Gingerich on his search for copies of the first and second editions which he describes in The Book Nobody Read.