EP-95 ON THE MOON WITH APOLLO 16
FIGURE 8.-Topographic Map of the Descartes region.

FIGURE 8.-Topographic Map of the Descartes region. This map shows the elevations of the surface of the Moon in the vicinity of the Apollo 16 landing site. The lines, called contours, connect points of equal elevation. Thus the line that is labeled 8050 indicates that the elevation of all points on the Moon's surface corresponding to that line lies at a relative height of 8050 meters. On topographic maps of the Earth we measure elevations relative to mean sea level. For the Moon we measure elevations relative to a sphere of radius 1,738,000 meters. The difference in elevation between adjacent lines is 10 meters (about 30 feet). NASA PHOTO S-72-16335.

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