Crossword clues for Astronomical observance:MOONSETAstronomical observationDEADRECKONCalculate without astronomical observationsGSTAstronomical observation std.MOONSETAstronomical observanceNOVASAstronomical observancesSTARAstronomical observationHUBBLESLAWAstronomical observation that galaxies move away from Earth at a rate proportional to their distance from EarthSKYAstronomer's observationCOMETAstronomer's observationSTARAstronomer's observationGALILEOAstronomer who first observed Saturn's ringsTYCHOBRAHEAstronomer who famously observed a supernova in 1572