Mena_crater_EW0229581356I_web_crop.png


Summary

Description
English: Date acquired: November 12, 2011

Image Mission Elapsed Time (MET): 229581348, 229581352, 229581356
Image ID: 1003074-1003076
Instrument: Wide Angle Camera (WAC) of the Mercury Dual Imaging System (MDIS)
WAC filters: 9, 7, 6 (1000, 750, 430 nanometers) as red, green, blue
Center Latitude: -0.97°
Center Longitude: 234.0° E
Resolution: 257 meters/pixel
Scale: Mena has a diameter of 15 km (9 miles)
Incidence Angle: 29.7°
Emission Angle: 16.3°
Phase Angle: 46.0°

Of Interest: The young rays of Mena crater contrast brightly against the surrounding surface, though the rays will gradually fade with time. The asymmetric pattern of the rays, with a gap in the south-western direction, may be due to the angle at which the impact that formed the crater occurred, or to the fact that Mena formed on the rim of a larger pre-existing impact crater, as seen in this image.

This image was acquired as a high-resolution targeted observation. Targeted observations are images of a small area on Mercury's surface at resolutions much higher than the 250-meter/pixel (820 feet/pixel) morphology base map or the 1-kilometer/pixel (0.6 miles/pixel) color base map. It is not possible to cover all of Mercury's surface at this high resolution during MESSENGER's one-year mission, but several areas of high scientific interest are generally imaged in this mode each week.
Date
Source THE BRIGHT RAYS OF MENA
Author NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington

Licensing

Public domain This file is in the public domain in the United States because it was solely created by NASA . NASA copyright policy states that "NASA material is not protected by copyright unless noted ". (See Template:PD-USGov , NASA copyright policy page or JPL Image Use Policy .)
Warnings:

Captions

Mena crater

Items portrayed in this file

depicts

9 December 2011