What we do

HM Nautical Almanac Office is a small multi-disciplinary group of specialists whose purpose is to provide solutions to astronomical and celestial navigation problems.

HMNAO is part of the UK Hydrographic Office.

Read more about what we do

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Contact HMNAO

HM Nautical Almanac Office

HM Nautical Almanac Office
UK Hydrographic Office
Admiralty Way
Taunton

TA1 2DN

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  1. Read about the Freedom of Information (FOI) Act and how to make a request
  2. Check our previous releases to see if we’ve already answered your question

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