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Polar Shells
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- Full-Res JPEG (836 x 2462) (458.7 kB)
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Caption:
21 May 2006
This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows sand dunes overlain by a layer of seasonal carbon dioxide frost in the north polar region of Mars. Sunlight illuminates the scene from the lower left, but slopes facing toward the upper right seem illuminated because of the thicker accumulation of frost on the slopes facing away from the sunlight.
Location near
: 76.3°N, 264.3°W
Image width
: ~3 km (~1.9 mi)
Illumination from
: lower left
Season
: Northern Winter
Cataloging Keywords:
| Name | Value | Additional Values |
|---|---|---|
| Target | Mars | |
| System | ||
| Target Type | Planet | |
| Mission | Mars Global Surveyor (MGS) | |
| Instrument Host | Mars Global Surveyor | |
| Host Type | Orbiter | |
| Instrument | Mars Orbiter Camera (MOC) | |
| Detector | ||
| Extra Keywords | Dune, Grayscale | |
| Acquisition Date | ||
| Release Date | 2006-05-21 | |
| Date in Caption | 2006-05-21 | |
| Image Credit | NASA/JPL/Malin Space Science Systems | |
| Source | photojournal.jpl.nasa.gov/catalog/PIA08477 | |
| Identifier | PIA08477 | |
