PIA01923: Gullies in Sirenum Terra, Mars


Gullies in Sirenum Terra, Mars

Caption:

This enhanced-color view shows gullies in an unnamed crater in the Terra Sirenum region of Mars. It is a sub-image from a larger view imaged by the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter on Oct. 3, 2006. This scene is about 254 meters (about 830 feet) wide. The upper and left regions of this scene are in shadow, yet color variations are still apparent. The high signal to noise ratio of the HiRISE camera allows for colors to be distinguished in shadows. This allows dark features to be identified as true albedo features versus topographical features.

Cataloging Keywords:

Name Value Additional Values
Target Mars
System
Target Type Planet
Mission Mars Reconnaissance Orbiter (MRO)
Instrument Host Mars Reconnaissance Orbiter
Host Type Orbiter
Instrument High Resolution Imaging Science Experiment (HiRISE)
Detector
Extra Keywords Color, Crater, Shadow
Acquisition Date
Release Date 2006-10-16
Date in Caption 2006-10-03
Image Credit NASA/JPL/Univ. of Arizona
Source photojournal.jpl.nasa.gov/catalog/PIA01923
Identifier PIA01923