00546nam a2200169Ia 4500003000900000008004100009020002100050040001600071080001800087110004200105245010900147260004600256300002300302650001200325650002500337650001400362IN-BaIIA211028s9999    xx            000 0 eng d  a978-0-7077-41925  cIIA Library  a(059):52bNAU  aHer Majesty's Nautical Almanac Office 4aThe astronomical almanac for the year 2019cNautical Almanac  Office, United States Naval Observatory     aWashingtonbU. S. Naval Observatoryc2018  a[various pagings.]  aAlmanac  aAstronomical almanac  aEphemaris