Nautical Almanac
Related Category: Astronomy: General
see ephemeris.
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Ephemeris - table listing the position of one or more celestial bodies for each day of the year.
Nautical almanac
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The Nautical Almanac was soon being used by ships from many countries, so their calculations of longitude were based upon the time at Greenwich.
Nautical Almanac (NASA SP-7, 1965) An annual publication of the U.S. Naval Observatory and H. M.
David Harper
(H.M. Nautical Almanac Office, Royal Greenwich Observatory, November 1996 to October 1998.)
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Nevil Mas kelyne, who succeeded him in 1764, set on foot, in 1767, the publication of the Nautical Almanac, and about the same time had an achromatic telescope fitted to the Greenwich M aske mural quadrant. The invention, perfected by John ly ne.
Skilled navigators can use the Moon, planets or one of 57 "navigational stars" that are described in nautical almanacs. Sights on the moon, planets and stars allow navigation to occur when clouds obscure other objects.
How it works ...
An annual joint publication of the US Naval Observatory (USNO) and (since the closure of the Royal Greenwich Observatory) the UK Nautical Almanac Office, which contains information on the positions of the Sun, Moon, and planets and their satellites, ...
Explanatory supplement to 'the Astronomical ephemeris' and 'the American Ephemeris and Nautical Almanac'
for a comparison of values predicted by different theories
A.L.
Almanacs are sometimes inscribed on, or accompany, 16th-18th century dials. The annual Nautical Almanac, now produced by the HM Nautical Almanac Office, derives from the version first published by Astronomer Royal Nevil Maskelyne in 1767.
Naval Observatory begin publishing a book called the American Ephemeris and Nautical Almanac?
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According to Lynne Marie Stockman, the name "Avior" is a coinage of Great Britain's H. M. Nautical Almanac Office. See HMNAO Star Names for the story.
Description of the Star ...
The constellation's brightest star, second-magnitude Alpha Pavonis, is called Peacock, a name given in or around 1937 by the Nautical Almanac Office for use in The Air Almanac.
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United States Government Printing Office. Washington, DC: Navy Dept., Naval Observatory, Nautical Almanac Office, pp. B4-B15, 2000.
The name Georgium Sidus or "the Georgian" were still used infrequently (by the British alone) thereafter. The final holdout was HM Nautical Almanac Office, which did not switch to Uranus until 1850.
The brightest star in the constellation is [6196] alpha Pavonis, a spectroscopic binary also known as Peacock, a name it got in the late 1930s in the navigational almanac The Air Almanac, released by the Nautical Almanac Office for the Royal Air ...
 See also: Observatory, Time, Earth, Second, Year
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