SP-424 The Voyage of Mariner
10
Fig. A-12. As Mariner flies by the
planet it looks at a part of the surface on which the sun is shining
from overhead. Craters and mountains cast no visible shadows and
surface features are seen as albedo differences, light rings of
crater walls streaks rays and light and dark splotches. The center of
this mosaic is approximately 90° longitude and 20°S
latitude.
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