Tirawa basin is a large impact crater on Saturn's moon Rhea, at 34°12′N 151°42′W / 34.2°N 151.7°W[1]. It was glimpsed by Voyager 1 during its flyby of the moon and later photographed in greater detail by the Cassini orbiter.
Tirawa is 5 kilometers (3.1 mi) deep in places, as measured in NASA Voyager images, and is 360 kilometers (220 mi) across.[2]
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.[3]
References edit
- ^ "Tirawa". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.
- ^ NASA Cassini Image: Tirawa at Twilight | SpaceRef - Space News as it Happens
- ^ http://www.lpi.usra.edu/meetings/lpsc2007/pdf/1958.pdf [bare URL PDF]