PIA06361: Dunes in Noachis


Dunes in Noachis

Caption:

1 July 2004
This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows dark sand dunes in a crater in Noachis Terra near 45.8°S, 323.4°W. Martian dunes, unlike the majority of their terrestrial counterparts, are dark because they are composed of minerals or rock fragments rich in unoxidized iron and magnesium. This image covers an area about 3 km (1.9 mi) wide. Sunlight illuminates this autumn scene 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 2004-07-01
Date in Caption 2004-07-01
Image Credit NASA/JPL/Malin Space Science Systems
Source photojournal.jpl.nasa.gov/catalog/PIA06361
Identifier PIA06361