Sinuous Ridge Materials in Reuyl Crater
NASA/JPL/UArizona
Sinuous Ridge Materials in Reuyl Crater
ESP_039424_1700  Science Theme: Sedimentary/Layering Processes
There are some interesting erosional signs in this observation, which will make for a good comparison with other intracrater fans and fluvial sedimentary landforms.

We can also see an inverted channel system, possibly ponded toward the southwest. As we’ve learned recently, it’s possible that perhaps a fluid was in part of this crater, as is hypothesized for Gale Crater (see artist rendition picture) where Curiosity is exploring. At high resolution, we might be able to resolve fine-scale layering/bedding and/or large, transported clasts (boulders).

Reuyl Crater is approximately 86 kilometers in diameter and was named after Dirk Reuyl, a Dutch-American physicist and astronomer (1906—1972) who made astronomical measurements of the diameter of Mars in the 1940s.

This caption is based on the original science rationale.

Written by: HiRISE Science Team (narration: Tre Gibbs)  (8 April 2015)
 
Acquisition date
24 December 2014

Local Mars time
15:10

Latitude (centered)
-9.787°

Longitude (East)
167.117°

Spacecraft altitude
264.8 km (164.6 miles)

Original image scale range
from 26.5 cm/pixel (with 1 x 1 binning) to 53.0 cm/pixel (with 2 x 2 binning)

Map projected scale
25 cm/pixel and North is up

Map projection
Equirectangular

Emission angle
2.0°

Phase angle
45.6°

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

Solar longitude
258.7°, Northern Autumn

For non-map projected images
North azimuth:  97°
Sub-solar azimuth:  341.7°
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non-map           (343MB)

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Merged RGB
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RGB color
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HiClip mini HD

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Color label
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HiView

NB
IRB: infrared-red-blue
RGB: red-green-blue
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Black & white is 5 km across; enhanced color about 1 km
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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.