A nautical almanac is a publication describing the positions of a selection of celestial bodies for the purpose of enabling navigators to use celestial navigation to determine the position of their ship while at sea. The Almanac specifies for each whole hour of the year the position on the Earth`s surface (in declination and Greenwich hour angle)....
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http://en.wikipedia.org/wiki/Nautical_almanac
A book containing all current data: navigational, tidal, astronomical and so on. It is published annually.
Found on
http://www.encyclo.co.uk/local/20645
No exact match found.
