Great Britain. Nautical Almanac Office. The nautical almanac and astronomical ephemeris. Supplement https://siris-libraries.si.edu/ipac20/ipac.jsp?&profile=liball ...
"Data for astronomy, space sciences, geodesy, surveying, navigation and other applications". Issued by: the Nautical almanac office, United States Naval Observatory, and: Her Majesty's Nautical ...
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