Arzachel (60 mile diameter) with its prominent N-S running rill and westward lying central peak. Note more streaks running to the east of Arzachel, apparent continuations of the streaks east of Alphonsus made by ejecta from Mare Imbrium.
Image made 10 June 2011 at 04:16:42 UT. Image made with 12.5" Obsession, Basler acA1300 with IR filter and 4X Powermate. I used the best 250 out of 1000 frames.
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