PIA00194: Latitude 90 Degrees North to 90 Degrees South and Longitude -180 Degrees to 0 Degrees
 Target Name:  Mars
 Is a satellite of:  Sol (our sun)
 Mission:  Viking
 Spacecraft:  Viking Orbiter 1
 Instrument:  Visual Imaging Subsystem - Camera A 
 Product Size:  6398 x 6398 pixels (w x h)
 Produced By:  U.S. Geological Survey
 Producer ID:  P43562
 Addition Date:  1998-06-08
 Primary Data Set:  Viking EDRs
 Full-Res TIFF:  PIA00194.tif (54.49 MB)
 Full-Res JPEG:  PIA00194.jpg (1.746 MB)

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Original Caption Released with Image:

The coordinates of the Lambert azimuthal equal area projection are latitude 90 degrees N. to 90 degrees S. and longitude -180 degrees to 0 degrees. The north polar residual ice cap of the Planum Boreum region, which is cut by spiral-patterned troughs, is located at top. The upper part is marked by large depression, Isidis basin, which contains light-colored plains. The upper part also includes the light-colored smooth plains of Elysium Planitia and dark plains of Vastitas Borealis. Together, these form a vast expanse of contiguous plains. Toward the bottom, on the other hand, the southern hemisphere is almost entirely made up of heavily cratered highlands. Toward the bottom, a conspicuous, relatively bright circular depression marks the ancient large Hellas impact basin.

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