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Astronomia
Astronomia (grekotik dator: \'\'astron\'\' zerutar objetua; \'\'nomos\'\' araua) zerutar objetuen posizioa, mugimendua, eta zerez eginda dauden ikertzen dituen zientzia. Ikertzaliari astronomoa deritzo.Eguzki-sistema: Merkurio | Artizar (Venus) | Lurra | Ilargia | Marte | Jupiter | Saturno | Pluton
