This 3-D image, called an anaglyph, shows the topography of
Vesta’s eastern hemisphere. To create this anaglyph, two
differently colored images are superimposed with an offset to
create depth. When viewed through red-blue glasses this anaglyph
shows a 3-D view of Vesta’s surface. The images used to generate
the two differently colored images that make up this anaglyph
were obtained during the approach phase of NASA’s Dawn mission
in July 2011. At the time the distance from Dawn to Vesta was
about 5,200 kilometers (3,200 miles), which results in an image
resolution of about 500 meters (1,600 feet) per pixel. The depth
effect or topography differences in this anaglyph were
calculated from the shape model of Vesta. A number of Vesta’s
large features are clear in this anaglyph. Firstly, the
equatorial troughs are visible around Vesta’s equator. These
troughs encircle most of the asteroid and are up to 20
kilometers (12 miles) wide. Secondly, to the north of these
troughs there are a number of highly degraded, old