Crossword clues for Astronomer's observation 4 lettersAnswerClueSTARAstronomical observationSTARAstronomer's observationMOONSETAstronomical observationMOONSETAstronomical observanceDEADRECKONCalculate without astronomical observationsHUBBLESLAWAstronomical observation that galaxies move away from Earth at a rate proportional to their distance from EarthNOVASAstronomical observancesGSTAstronomical observation std.SKYAstronomer's observationCOMETAstronomer's observationGALILEOAstronomer who first observed Saturn's ringsTYCHOBRAHEAstronomer who famously observed a supernova in 1572
