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The visibility of the new crescent moon for April 2024 (lunation number 1255)
The home of HM Nautical Almanac Office on GOV.UK. HM Nautical Almanac Office is a small multi-disciplinary group of specialists whose purpose is to provide solutions to astronomical and celestial navigation problems.
The visibility of the new crescent moon for April 2024 (lunation number 1253)
HM Nautical Almanac Office provides the daily rise, set and twilight times in June for the British Isles.
The visibility of the new crescent moon for April 2023 (lunation number 1241)
The visibility of the new crescent moon for March 2024 (lunation number 1252)
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 May for the British Isles.
HM Nautical Almanac Office provides the daily rise, set and twilight times in March for the British Isles
NavPac 4 is the much anticipated software upgrade to HMNAO’s celestial navigation software package
HM Nautical Almanac Office provides the daily rise, set and twilight times in February for the British Isles
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
HM Nautical Almanac Office provides the daily rise, set and twilight times in August for the British Isles
HM Nautical Almanac Office provides the daily rise, set and twilight times in September for the British Isles
HM Nautical Almanac Office provides the daily rise, set and twilight times in November for the British Isles
Mercury, Venus, Mars, Jupiter and Saturn are in a rare planetary alignment during morning nautical twilight
HM Nautical Almanac Office provides the daily rise, set and twilight times in July for the British Isles
HM Nautical Almanac Office provides the daily rise, set and twilight times in May for the British Isles
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