Gullies in Liu Hsin Crater
NASA/JPL/University of Arizona
Gullies in Liu Hsin Crater
ESP_038896_1255  Science Theme: Fluvial Processes
twitter  •  facebook  •  tumblr

HICLIP
1080p (MP4)
Audio (MP3)

WALLPAPER
800
1024
1152
1280
1440
1600
1920
2048
2560
2880

HIFLYER
PDF (11 x 17)

HISLIDES
PowerPoint
Keynote
PDF

Here, we have a group of small gullies along a rock layer on the south wall of Liu Hsin Crater. At the foot of the gullies you can see the “fans” of granular sediment that have been deposited downhill from the gully formation.

Nearby, there are much larger gullies. By comparing the gullies that are just 20 kilometers away, we may be able to determine the factors that affect their size.

Liu Hsin (also spelled Xin) was a Chinese astronomer, historian, and editor during the Western Han Dynasty (206 BCE to 9 CE) and then the Xin Dynasty (9 to 23 CE).

This caption is based in part on a public target suggestion from HiWish. (Note: the header image is non map-projected, so approximate north is down).

Written by: HiRISE Science Team (audio: Tre Gibbs)  (21 January 2015)
 
Acquisition date
13 November 2014

Local Mars time:
15:47

Latitude (centered)
-54.266°

Longitude (East)
188.006°

Spacecraft altitude
248.3 km (155.2 miles)

Original image scale range
24.8 cm/pixel (with 1 x 1 binning) so objects ~75 cm across are resolved

Map projected scale
25 cm/pixel and North is up

Map projection
Equirectangular

Emission angle:
0.3°

Phase angle:
55.0°

Solar incidence angle
55°, with the Sun about 35° above the horizon

Solar longitude
232.6°, Northern Autumn

For non-map projected images
North azimuth:  97°
Sub-solar azimuth:  22.1°
JPEG
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

JP2
Black and white
map-projected   (1129MB)

IRB color
map-projected   (559MB)

JP2 EXTRAS
Black and white
map-projected  (424MB)
non-map           (678MB)

IRB color
map projected  (186MB)
non-map           (625MB)

Merged IRB
map projected  (306MB)

Merged RGB
map-projected  (296MB)

RGB color
non map           (624MB)
ADDITIONAL INFORMATION
B&W label
Color label
Merged IRB label
Merged RGB label
EDR products
HiView

NB
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

USAGE POLICY
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

POSTSCRIPT
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.