Naar Crater
Naar Crater
ESP_025691_2030  Science Theme: Impact Processes
This impressive crater, that stretches well across the width of the HiRISE camera’s footprint, is notable for its sharp rim and steep walls.

There are also some interesting features on the crater floor, not to mention the ejecta blanket, the material surrounding the crater as a result of the original impact. In fact, when viewing this area with other images that have a wider range of view than HiRISE, the ejecta blankets for the craters located here take on the appearance of a flower.

This pattern of ejecta is common with Martian craters. The distinct sharp ends to the flower shaped ejected has led many scientists to suggest that water and ice were engulfed in the ejecta as it was thrown from the crater.

The crater is named after a town in Egypt.

Note: the above image is not map-projected, so North is down.

Written by: HiRISE Science Team (audio by Tre Gibbs)  (1 March 2012)

This is a stereo pair with PSP_007046_2030.
Acquisition date
19 January 2012

Local Mars time

Latitude (centered)

Longitude (East)

Spacecraft altitude
285.6 km (177.5 miles)

Original image scale range
31.0 cm/pixel (with 1 x 1 binning) so objects ~93 cm across are resolved

Map projected scale
25 cm/pixel and North is up

Map projection

Emission angle

Phase angle

Solar incidence angle
42°, with the Sun about 48° above the horizon

Solar longitude
59.0°, Northern Spring

For non-map projected images
North azimuth:  95°
Sub-solar azimuth:  12.3°
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   (1749MB)

IRB color
map-projected   (937MB)

Black and white
map-projected  (918MB)
non-map           (697MB)

IRB color
map projected  (308MB)
non-map           (653MB)

Merged IRB
map projected  (478MB)

Merged RGB
map-projected  (463MB)

RGB color
non map           (582MB)
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’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.