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  2. Royal Observatory, Greenwich - Wikipedia

    en.wikipedia.org/wiki/Royal_Observatory,_Greenwich

    The Royal Observatory, Greenwich (ROG; [1] known as the Old Royal Observatory from 1957 to 1998, when the working Royal Greenwich Observatory, RGO, temporarily moved south from Greenwich to Herstmonceux) is an observatory situated on a hill in Greenwich Park in south east London, overlooking the River Thames to the north.

  3. Prime meridian (Greenwich) - Wikipedia

    en.wikipedia.org/wiki/Prime_meridian_(Greenwich)

    The Greenwich meridian is a prime meridian, a geographical reference line that passes through the Royal Observatory, Greenwich, in London, England. [1] From 1884 to 1974, the Greenwich meridian was the international standard prime meridian, used worldwide for timekeeping and navigation.

  4. Shepherd Gate Clock - Wikipedia

    en.wikipedia.org/wiki/Shepherd_Gate_Clock

    It shows Greenwich Mean Time all year round. The Shepherd Gate Clock) is mounted on the wall outside the gate of the Royal Observatory, Greenwich building in Greenwich, Greater London. The clock, an early example of an electrically connected clock system, was a sympathetic clock mechanism controlled by electric pulses transmitted by a motor ...

  5. Greenwich 28-inch refractor - Wikipedia

    en.wikipedia.org/wiki/Greenwich_28-inch_refractor

    The observatory is popular for tourism in modern times. From the other side. The observatory sits amidst Greenwich Park in London, England. The observer's end of the telescope, showing various eyepieces. A 28-inch aperture refractor was ordered from the telescope maker Grubb in 1885. [6] It was installed by 1893 in the Great Equatorial building ...

  6. Time ball - Wikipedia

    en.wikipedia.org/wiki/Time_ball

    Royal Observatory, Greenwich, London.Installed in 1833, a time ball sits atop the Octagon Room. A time ball or timeball is a time-signalling device. It consists of a large, painted wooden or metal ball that is dropped at a predetermined time, principally to enable navigators aboard ships offshore to verify the setting of their marine chronometers.

  7. Martial Bourdin - Wikipedia

    en.wikipedia.org/wiki/Martial_Bourdin

    Royal Observatory, Greenwich c. 1902 as depicted on a postcard. Martial Bourdin (1868 – 15 February 1894) was a French anarchist, noted for his attempt to bomb Greenwich Observatory. He sustained fatal injuries when his bomb exploded prematurely as he was carrying it through Greenwich Park, London. [1]

  8. Astronomer Royal - Wikipedia

    en.wikipedia.org/wiki/Astronomer_Royal

    The post was created by Charles II in 1675, at the same time as he founded the Royal Observatory, Greenwich.He appointed John Flamsteed, instructing him "forthwith to apply himself with the most exact care and diligence to the rectifying the tables of the motions of the heavens, and the places of the fixed stars, so as to find out the so-much desired longitude of places, for the perfecting the ...

  9. List of largest optical telescopes in the British Isles

    en.wikipedia.org/wiki/List_of_largest_optical...

    Discovered as Georgium Sidus, later known as Uranus was one of the famous discoveries made from the British Isles The mirror from the 40-foot telescope, on display at the Science Museum, London. Former Royal Greenwich Observatory, Herstmonceux, East Sussex; this was an important site for telescopes in the latter 20th century in England.

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