Complex Gullies in a Crater
Complex Gullies in a Crater
ESP_058399_1415  Science Theme: Mass Wasting Processes
Most gullies in the southern mid-latitudes are on south-facing slopes, which are the coldest and have the most frost in the winter. However, some occur on other slopes.

This image shows large gullies on both the pole- and equator-facing slopes. An important puzzle in Mars science is whether or not all of these gullies form in the same geologic eras and by the same processes.

If you have red/green glasses, be sure to check out the anaglyph of this crater, which shows rugged topography!

Written by: Colin Dundas (audio: Tre Gibbs)  (18 March 2019)

This is a stereo pair with ESP_057700_1415.
Acquisition date
10 January 2019

Local Mars time

Latitude (centered)

Longitude (East)

Spacecraft altitude
253.1 km (157.3 miles)

Original image scale range
26.7 cm/pixel (with 1 x 1 binning) so objects ~80 cm across are resolved

Map projected scale
25 cm/pixel and North is up

Map projection

Emission angle

Phase angle

Solar incidence angle
38°, with the Sun about 52° above the horizon

Solar longitude
322.0°, Northern Winter

For non-map projected images
North azimuth:  97°
Sub-solar azimuth:  36.2°
Black and white
map projected  non-map

IRB color
map projected  non-map

Merged IRB
map projected

Merged RGB
map projected

RGB color
non-map projected

Black and white
map-projected   (483MB)

IRB color
map-projected   (278MB)

Black and white
map-projected  (216MB)
non-map           (261MB)

IRB color
map projected  (73MB)
non-map           (216MB)

Merged IRB
map projected  (120MB)

Merged RGB
map-projected  (115MB)

RGB color
non map           (219MB)
Map-projected, reduced-resolution
Full resolution JP2 download
Anaglyph details page

B&W label
Color label
Merged IRB label
Merged RGB label
EDR products

IRB: infrared-red-blue
RGB: red-green-blue
About color products (PDF)

Black & white is 5 km across; enhanced color about 1 km
For scale, use JPEG/JP2 black & white map-projected images

All of the images produced by HiRISE and accessible on this site are within the public domain: there are no restrictions on their usage by anyone in the public, including news or science organizations. We do ask for a credit line where possible:
NASA/JPL/University of Arizona

NASA’s Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, Calif., manages the Mars Reconnaissance Orbiter for NASA’s Science Mission Directorate, Washington. The HiRISE camera was built by Ball Aerospace and Technology Corporation and is operated by the University of Arizona.