The human eye is sensitive to light with wavelengths from about 400 to 700 nanometers (nm). We perceive light from the short-wavelength end of this spectrum as violet or indigo. Today's image was taken through the a filter with a center wavelength of 433 nm, corresponding to these indigo colors. Named craters in the scene include Zeami, Rublev, and the Tolstoj basin.
Date acquired: December 17, 2011
Image Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington