astronomical observations 2 Exclude matching results astronomické pozorovania 2 Exclude matching results dejiny astronómie 1 Exclude matching results history of astronomy 1 Exclude matching results kozmický výskum 1 Exclude matching results planets 1 Exclude matching results planéty (astronómia) 1 Exclude matching results space research 1 Exclude matching results universe 1 Exclude matching results vesmír 1 Exclude matching results vision 1 Exclude matching results zrak 1 Exclude matching results