"Nautical Almanac"
by cm

Nautical Almanac
Public DomainNautical Almanac
From 1767 to 1832, Nevil Maskelyne’s Nautical Almanac and Astronomical Ephemeris was published by the Royal Greenwich Observatory.   In 1832, publication was transferred to HM Nautical Almanac Office.   The HMNAO was located at Greenwich until 1937, when it transferred with the Observatory to Herstmonceux in Sussex.   It is now part of the UK Hydrographic Office in Somerset.   Since 1960, the HMNAO and the US Naval Observatory have jointly published a single Nautical Almanac.