The northern hemisphere of Enceladus is seen in this polar stereographic
map, mosaicked from the best-available Cassini and Voyager clear-filter
images.
The map is centered on the north pole and surface coverage extends to the
equator. Gridlines show latitude and longitude in 30-degree increments.
This map is being released along with a southern polar projection map
(See PIA07720).
These two maps show that the character of terrains near the north pole
(shown here) differs strongly from those near the south pole. Terrain near
the north pole is among the most heavily cratered and oldest on the
surface of Enceladus. The northern hemisphere map shows that a broad band
of cratered terrain extends from the equator on the Saturn-facing side
(centered on 0-degrees longitude), over the pole and to the equator on the
anti-Saturn side (centered on 180-degrees longitude). Terrains near the
equator and mid-latitudes on the leading (90 degrees West) and trailing
(270 degrees West) sides of Enceladus are much less heavily cratered and
are characterized by intense zones of fracturing and faulting.
As seen in the southern hemisphere map (PIA07720), the band of cratered
terrain at 0 and 180 degrees longitude extends southward from the equator.
However, poleward of about 55 degrees south latitude, the cratered terrain
is interrupted and replaced by a conspicuously fractured terrain around
the pole that is nearly devoid of impact craters. In contrast to the very
old north polar terrain, the southern polar terrain is among the youngest
on the surface of Enceladus.
Within the southern polar region is a group of prominent parallel
"stripes" made up of fractures that are delineated by relatively dark
reflective (albedo) markings flanking the sides of each fracture.
An interesting property of the parallel fracture system is that each
appears to turn back at its westernmost segment as if it has been "bent"
or "folded" into a hook-like curve. Similar patterns of folded or kinked
fractures can be found throughout the region - a unique feature of the
south polar terrains.