As MESSENGER approached Mercury, the NAC acquired images to create
a mosaic of the entire planet. The mosaic shown here was created from about
half of those images and is shown in an orthographic projection. This view is in
contrast to the cylindrical equidistant map mosaic previously released. For this
mosaic, an orthographic projection was used to create a view that has the
perspective that one would see from deep space. Over three decades earlier,
Mariner 10 viewed this portion of Mercury’s surface, and the craters that were
named on the basis of those images are labeled on this mosaic. The
MESSENGER images of this same territory are allowing scientists to study
Mercury’s surface under different illumination conditions, and these complementary
views provide new insight into the nature of the geologic features on Mercury.
Date Acquired: January 14, 2008
Instrument:Mosaic created with images taken by the Narrow Angle Camera (NAC) of the Mercury Dual Imaging System (MDIS)
Resolution: 1.5 kilometers/pixel (0.93 miles/pixel)
Scale: This mosaic shows Mercury from the equator nearly to the northern
pole, a distance of about one Mercury radius (2440 kilometers, 1516 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.