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Astronomical

Astronomical data suitable for a wide range of users, including professional and amateur astronomers, mariners, aviators, surveyors, the Armed Forces, the Police, lawyers, religious groups, architects, schools, diary and calendar manufacturers, photographers and film crews. In fact, anyone requiring astronomical information may require our services.

HM Nautical Almanac Office (HMNAO) is jointly responsible for producing the annual volumes of The Astronomical Almanac, The Nautical Almanac and Astronomical Phenomena in collaboration with our colleagues at the US Nautical Almanac Office within the Astronomical Applications Department of the US Naval Observatory. HMNAO also produces The Star Almanac, NavPac and Compact Data, The UK Air Almanac, Rapid Sight Reduction Tables for Navigation and Planetary and Lunar Coordinates in the United Kingdom.

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The Nautical Almanac
The Nautical Almanac (NP314) - The Nautical Almanac contains tabulations of the Sun, Moon navigati..
Rapid Sight Reduction Tables for Navigation
Rapid Sight Reduction Tables for Navigation (NP303) - Three volumes which can be used with The Nau..
Sight Reduction Tables for Marine Navigation
Sight Reduction Tables for Marine Navigation (NP401) is available as a 6 volume set.   T..
NavPac & Compact Data
NavPac & Compact Data (DP330) is to provide navigators and astronomers with simple and efficie..
Star Finder and Identifier
Star Finder and Identifier (NP323) is used to predict the bearing from true north (azimuth) and an..
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