December 3, 2009
Volcanic Hinterland
image by Nick Smith, from La Palma, Canary Islands
Can you ignore the nearby mega attractions to explore less well known ones? Beyond the image frame to the west is Aristarchus and Schröter's Valley, but here where the sunset terminator highllights small features are some small gems. Start at the bottom left corner with the 4 or 5 rilles running downhill from the Prinz crater area. Do you notice the slightly darker colorations that define this volcanic area compared to the younger and more uniform surrounding lavas? That is a very delicate rise - probably lifting of otherwise buried terrain by a pocket of magma that leaked to the surface to make the rilles. Moving diagonally up the terminator are a series of minor mare ridges that mark broad edges of possible basin rings of Procellarum to the west, and Imbrium to the east. In with these ridges are two craters affected by mare flooding. A little below the middle of the image is a shadow-filled normal crater (Angstrom) and immediately to its left is a crater that looks like a thin Cheerio (an American breakfast cereal). The Chuck Wood
Technical Details
August 16, 2009; ~5:00 UT. Lkywatcher ED120 telescope + Lumenera Infinity 2-1M camera + red filter
Related Links
Rükl plate 9 & 19
Nick's entire mosaic of the 25 day old Moon
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