A wonderful sunrise scene starting with the beautiful terraced walls of Philolas (73km dia.) in the upper right corner, a Copernican Period crater (recent) formed within the last billion years. Notice how it appears this craters sits inside an older, larger crater. To the left you can see the top sunlit edge of the wall of shadow filled Anaximenes (82km) traced out by sunlight just catching the mountain tops. Below that, also on the terminator, are the ramparts of the crater Carpenter (61km) just coming into the light. The star of this show, the crater J. Herschel (160km) is the huge ring visible in the lower left quadrant of this image. It is an ancient crater of Pre-Nectarian age, possibly as old as 4.5 billion years! Note the rough floor, normally smooth with higher sun but now showing the slightest irregularity and smallest pit. The shadows are a delight as well with the gap in the upper right letting light spill into the interior through the pass. Additionally the light catches several nice mountains on the south rim of Herschel behind the emerging crater Horrebow (26km). All of this sits on the far northwestern shore of Mare Frigoris seen in the lower right lending contrast to the coarse terrain between Philolas and J. Herschel. This is a fabulous region of contrasts.
