This
image shows a heavily cratered region near Callisto's equator. It was taken
by the Galileo spacecraft Solid State Imaging (CCD) system on its ninth
orbit around Jupiter. North is to the top of the image. The 50 km double
ring crater in the center of the image is named Har. Har displays an unusual
rounded mound on its floor. The origin of the mound is unclear but probably
involves uplift of ice-rich materials from below, either as a 'rebound'
immediately following the impact that formed the crater or as a later process.
Har is older than the prominent 20 km crater superposed on its western rim.
The large crater partially visible in the northeast corner of the image
is called Tindr. Chains of secondary craters (craters formed from the impact
of materials thrown out of the main crater during an impact) originating
from Tindr crosscut the eastern rim of Har. |
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The
image, centered at 3.3 degrees south latitude and 357.9 degrees west longitude,
covers an area of 120 km by 115 km. The sun illuminates the scene from the
west (left). The smallest distinguishable features in the image are about
294m across. This image was obtained on June 25, 1997, when Galileo was
14,080 km from Callisto. |
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