2017-03-03 ========== CDK20N Moore Observatory John Kielkopf Crescent Moon after last quarter Mare Crisium prominent on the eastern limb Exposures of 0.01 second Bias corrected Flat corrected Sloan filters in z, i, r, and g Linear gray scale images in each filter are correctly oriented NSEW. Color image composite maps i->red, r-> green, g->blue and highlights northern polar region as light green, i.e. actually reddish.