Heavens-Above Home Page. Solar System Scope. ACT-REACT Quick Map. The Clementine UVVIS Ratio (false color) views of the Moon are built by creating ratio images using 3 of the 5 Clementine UVVIS camera bands and combining these into the red, green, and blue channels of a color image: Channel Ratio (band/band) Red = 750 nm/415 nm Green = 750 nm/950 nm Blue = 414 nm/750 nm The color ratio image product serves to cancel out the dominant brightness variations of the scene (controlled by albedo variations and topographic shading) and enhances color differences related to soil mineralogy and maturity.
The lunar highlands, mostly old (~4.5 billion years) gabbroic anorthosite rocks, are depicted in shades of red (old) and blue (younger). The lunar maria (~3.9 to ~1 billion years), mostly iron-rich basaltic materials of variable titanium contents, are portrayed in shades of yellow/orange (iron-rich, lower titanium) and blue (iron-rich, higher titanium). Moon Phase. Scale-of-universe-v1.swf (application/x-shockwave-flash Object) The Scale of the Universe. DaylightMap. Photopic Sky Survey.