Crossword clues for Astronomer's sighting 4 lettersAnswerClueOORT___ cloud (astronomical sighting)MOONAstronomical sightingNOVAAstronomical sightingNOVAAstronomer's sightingNOVAAstronomer's sighting, perhapsNOVAAstronomer's sighting, sometimesSTARAstronomer's sightingMETEORAstronomical sightingNOVAEAstronomers' sightingsNOVAEAstronomical sightingsPLANETAstronomer's sightingMETEORAstronomer's sightingMOONSAstronomer's sightingsCOMETAstronomer's sightingNEBULAAstronomer's sighting