27 06 2017 just like in paper versions of standrad nautical almanacs each page should be considered a double page maybe print out two pages and you will realize that each double page covers three days of the year start here and download the 2017 copy of the almanac 2017. For over 150 years the united states nautical almanac office has published the nautical almanac first as part of the american ephemeris and nautical almanac and then on its own to provide the us navy with a convenient form of the astronomical data used for celestial navigation. Nautical almanac 2017 commercial edition the cornerstone for all celestial navigation listing the celestial bodies used for navigation a sight reduction table and other information valuable to the offshore navigator the content of this edition is identical to the united states naval observatory edition
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