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Windblown Sand Dunes
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Caption:
MGS MOC Release No. MOC2-557, 27 November 2003
This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows sand dunes and large ripples in a crater in the Hellespontus region of Mars. The winds that formed these dunes generally blew from the left/lower-left (west/southwest). Unlike the majority of dunes on Earth, sand dunes on Mars are mostly made up of dark, rather than light, grains. This scene is located near 50.3°S, 327.5°W. The image covers an area 3 km (1.9 mi) wide, and is illuminated by sunlight from the upper left.
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 | Crater, Dune, Grayscale | |
| Acquisition Date | ||
| Release Date | 2003-12-03 | |
| Date in Caption | 2003-11-27 | |
| Image Credit | NASA/JPL/Malin Space Science Systems | |
| Source | photojournal.jpl.nasa.gov/catalog/PIA04896 | |
| Identifier | PIA04896 | |
