Hm Nautical Almanac Office
February 11
16:17
2025
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The HMNAO Crescent Moon Visibility for late May 2025 shows the global likelihood of observing the young lunar crescent on the evenings of 27 to 29 May.
At HMNAO, we provide astronomical data and predictions to aid observers, and the global data attached is for individuals interpretation. For further enquiries, please contact the UKHO atCustomerServices@ukho.gov.uk.