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Aegaeon (moon) : ウィキペディア英語版 | Aegaeon (moon)
Aegaeon ( ; or as Greek ''Αιγαίων''), also (provisional designation ), is a natural satellite of Saturn. It is thought to be similarly smooth as Methone. It orbits between Janus and Mimas. ==Discovery and naming== Images of Aegaeon were taken by Cassini on 15 August 2008, and its discovery was announced on 3 March 2009 by Carolyn Porco of the Cassini Imaging Science Team using the provisional designation .〔(IAU Circular No. 9023 )〕 Aegaeon was named after Ægæon, one of the hekatonkheires, on 5 May 2009.〔Jennifer Blue, (Saturnian Satellite Named Aegaeon ), USGS Astrogeology Hot Topics, 5 May 2009〕
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