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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 .
The visibility of the new crescent moon for May 2026.
The visibility of the new crescent moon for March 2026.
The visibility of the new crescent moon for February 2026.
HM Nautical Almanac Office is a small multi-disciplinary group of specialists whose purpose is to provide solutions to astronomical and celestial navigation problems.
HM Nautical Almanac Office provides the daily rise, set and twilight times in February for the United Kingdom and Ireland.
A deep partial eclipse will be visible from the British Isles on the morning of 20 March 2015
HMNAO provides information of the sighting of the new crescent moon for the start of Ramadan and the start of Eid al-Fitr
A new paper by F.R. Stephenson, L.V. Morrison and C.Y. Hohenkerk, presents new determinations of Earth Rotation from 720 BC to AD 2015
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