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  2. Admiralty chart - Wikipedia

    en.wikipedia.org/wiki/Admiralty_chart

    [4]: 27 [5]: 105–106 The first catalogue of Admiralty charts was published in 1825, and listed 756 charts. [6] Admiralty Chart of the coast of Peru, surveyed by Robert FitzRoy in 1836, engraved in 1840, and published with corrections to 1960. Charts were printed from copper plates. Plates were engraved, in reverse, with a burin.

  3. List of astronomical catalogues - Wikipedia

    en.wikipedia.org/.../List_of_astronomical_catalogues

    Z — Fritz Zwicky, Catalogue of galaxies and of clusters of galaxies; ZC — Robertson's Zodiacal Catalogue (James Robertson's catalogue of 3539 zodiacal stars brighter than 9th magnitude) Zij — Islamic astronomical books that tabulates parameters used for astronomical calculations of the positions of the Sun, Moon, stars, and planets

  4. Henry Draper Catalogue - Wikipedia

    en.wikipedia.org/wiki/Henry_Draper_Catalogue

    The Henry Draper Catalogue (HD) is an astronomical star catalogue published between 1918 and 1924, giving spectroscopic classifications for 225,300 stars; it was later expanded by the Henry Draper Extension (HDE), published between 1925 and 1936, which gave classifications for 46,850 more stars, and by the Henry Draper Extension Charts (HDEC), published from 1937 to 1949 in the form of charts ...

  5. Electronic navigational chart - Wikipedia

    en.wikipedia.org/wiki/Electronic_navigational_chart

    An Electronic Navigational Chart (ENC) is a digital representation of a real-world geographical area for the purpose of Marine navigation.Real-world objects and areas of navigational significance, or to a lesser degree - informational significance, are portrayed through Raster facsimiles of traditional paper charts; or more commonly through vector images, which are able to scale their relative ...

  6. Carte du Ciel - Wikipedia

    en.wikipedia.org/wiki/Carte_du_Ciel

    The Sydney 'Star Camera' used in the Carte du Ciel project, original publication, 1892. The Carte du Ciel (French pronunciation: [kaʁt dy sjɛl]; literally, 'Map of the Sky') and the Astrographic Catalogue (or Astrographic Chart) were two distinct but connected components of a massive international astronomical project, initiated in the late 19th century, to catalogue and map the positions of ...

  7. Letter from Hassenfeld & Hiatt

    images.huffingtonpost.com/2011-08-25-hhletter.pdf

    April 16, 2010 Dear Friend: We’re writing with a very unusual request — that you pledge not to give any campaign contributions to any candidate for Congress until they have

  8. Here’s how to watch this year’s brightest meteor shower - AOL

    www.aol.com/news/geminid-meteor-shower-peaks...

    The Geminids will light up the skies this week. Here’s the best time and place to see the annual meteor shower.

  9. File:United States Frequency Allocations Chart 2011 - The ...

    en.wikipedia.org/wiki/File:United_States...

    Note: Information in the chart has been superseded by the information in File:United States Frequency Allocations Chart 2016 - The Radio Spectrum.pdf, which was downloaded from the US Department of Commerce web site and archived at archive.org.