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Tirawa (crater) : ウィキペディア英語版 | Tirawa (crater)
Tirawa basin is a large impact crater on Saturn's moon Rhea, at . It was glimpsed by Voyager 1 during its flyby of the moon and later photographed in greater detail by the Cassini orbiter. Tirawa is deep in places, as measured in NASA Voyager images, and is across.〔(NASA Cassini Image: Tirawa at Twilight | SpaceRef - Space News as it Happens )〕 The crater has a slightly elliptic outline and an elongated central peak complex suggesting it was caused by an oblique impact. Tirawa overlaps Mamaldi, a larger and more degraded basin to its southwest.〔http://www.lpi.usra.edu/meetings/lpsc2007/pdf/1958.pdf〕 ==References==
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