00826nam a2200193Ia 4500003000900000008004100009040001600050080001800066110004200084245024800126260004600374300002300420650001900443650002500462650001400487942000700501999001700508952010700525IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a(059):52bNAU  aHer Majesty's Nautical Almanac Office 4aThe astronomical almanac for the year 2020band its companion the astronomical almanac online data for astronomy, space sciences, geodesy, surveying, navigation, and other applicationscNautical Almanac  Office, United States Naval Observatory  aWashingtonbNautical Almanac Officec2019  a[various pagings.]  aAlmanac910635  aAstronomical almanac  aEphemeris  cBK  c19499d19499  00104070aBANbBANcGENd2020-01-02l1o(059):52/ NAUp20421r2023-03-23s2022-03-10w2020-01-02yBK