PIA10936: Peak Rings on Mercury


Peak Rings on Mercury

Caption:

Click here for annotated version of PIA10936
Click on image for
larger annotated version

MESSENGER snapped this image of Mercury's horizon about 56 minutes before the spacecraft's closest pass by the planet. The distinctive peak-ring basin Dürer (named from Mariner 10 photos for the German artist Albrecht Dürer) is visible. The smaller crater Mickiewicz (named for the Polish poet Adam Mickiewicz) can also be seen, with a smaller central peak-ring structure in the middle of its crater floor. Craters form ring structures during the impact process that creates the crater, and the number and characteristics of the rings depend on the crater's size. Raditladi, imaged for the first time by MESSENGER and recently named, also shows a pronounced peak-ring structure.

Date Acquired: January 14, 2008
Image Mission Elapsed Time (MET): 108821505
Instrument: Narrow Angle Camera (NAC) of the Mercury Dual Imaging System (MDIS)
Scale: Dürer crater is about 190 kilometers (120 miles) in diameter
Spacecraft Altitude: 18,300 kilometers (11,400 miles)

Background Info:

These images are from MESSENGER, a NASA Discovery mission to conduct the first orbital study of the innermost planet, Mercury. For information regarding the use of images, see the MESSENGER image use policy .

Cataloging Keywords:

Name Value Additional Values
Target Mercury
System Mercury
Target Type Planet
Mission MESSENGER Mariner
Instrument Host MESSENGER Mariner 10
Host Type Flyby Spacecraft Orbiter
Instrument Mercury Dual Imaging System (MDIS)
Detector
Extra Keywords Artwork, Crater, Grayscale
Acquisition Date
Release Date 2008-06-17
Date in Caption 2008-01-14
Image Credit NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington
Source photojournal.jpl.nasa.gov/catalog/PIA10936
Identifier PIA10936