1 Result #1: Astronomical phenomena for the year... [1951 to present] Creators & Contributors: United States Naval Observatory > Nautical Almanac Office; Great Britain Nautical Almanac Office Journal/Periodical (Print/Paper) Washington : The Office, 1950-1951- 51060475sn78002393sn 780023932956636 Loading... Ask at the Service Desk More available Check availability