The gallery of images acquired by the MESSENGER mission is filled with
both Wide Angle Camera (WAC) and Narrow Angle Camera (NAC) images. The two
MDIS cameras, though they cannot operate simultaneously, are used together
in a complementary fashion. The NAC acquires images at a factor of seven
higher spatial resolution than the WAC, while the WAC is equipped with 11
narrow-band color filters; thus, the NAC can see features in much more
detail, but the WAC can see them in color. This NAC image was taken just
22 seconds prior to the beginning of a set of WAC images used to create
full-planet color images of Mercury (PIA11364). The higher resolution of
the NAC is evident by comparing these narrow and wide views of the same
scene, taken back-to-back. In this NAC image, bright rays from nearby
Kuiper crater (PIA11355) enter the frame from the bottom of the image.
Date Acquired: October 6, 2008
Image Mission Elapsed Time (MET): 131775206
Instrument: Narrow Angle Camera (NAC) of the Mercury Dual Imaging System (MDIS)
Resolution: 700 meters/pixel (0.43 miles/pixel)
Scale: This image is about 710 kilometers wide (440 miles)
Spacecraft Altitude: 27,000 kilometers (17,000 miles)
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.
