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The American Ephemeris and Nautical Almanac was published for the years 1855 to 1980, containing information necessary for astronomers, surveyors, and navigators. It was based on the original British publication, The Nautical Almanac and Astronomical Ephemeris, with which it merged to form The Astronomical Almanac, published from the year 1981 to the present.
From 1849 to 1855 he was the first superintendent of American Nautical Almanac Office and produced the American Ephemeris and Nautical Almanac. [13] In 1854, he was promoted to commander and given the command of the St. Mary's.
In the US, an official (and initially separate) series of ephemeris publications began with the issue for 1855 as The American Ephemeris and Nautical Almanac; but before that, the British Nautical Almanac was commonly used on American ships and in the United States [13] – sometimes in the form of an independently printed American 'impression ...
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David Peck Todd (March 19, 1855 — June 1, 1939) was an American astronomer. ... and at the US Nautical Almanac Office from 1878 to 1881. From 1881 to 1917 he was a ...
Newcomb's Tables of the Sun (full title Tables of the Motion of the Earth on its Axis and Around the Sun) [a] is a work by the American astronomer and mathematician Simon Newcomb, published in volume VI of the serial publication Astronomical Papers Prepared for the Use of the American Ephemeris and Nautical Almanac. [1]
Canadian officials are working on a list of dozens of American products that the United States exports to Canada, targeting items that both send a political message and inflict a reasonable amount ...
It was never used as the basis of any time zone, although it was the local mean time of the city of Washington before the advent of American time zones on 18 November 1883. It was also used to time astronomical events by users of the American Ephemeris and Nautical Almanac, first published for the year 1855.
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