so the only reason is because when the person who found it was named after it or at least go to choose the name so when the person had found such a planet like saturn he studied it and got dicovered....
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: Sætern "Italic god," also "most remote planet" (then known), from L. Saturnus, Italic god of agriculture, possibly from Etruscan. Derivation from L. serere (pp. satus) "to sow" is said to be...