This map is based on LROC data provided courtesy of NASA/GSFC/Arizona State University.  This
 data is based on images from the Lunar
 Reconnaissance Orbiter's Wide Angle Camera.
 The data was then processed by John van Vliet and made available under the
 Creative Commons cc-by-sa 3.0 license (http://creativecommons.org/licenses/by-sa/3.0/).
 It was further processed by Omega Centauri Software, and is still covered by the
 cc-by-sa 3.0 license.  Creative contributions copyright (c) 2008-2011 John van Vliet
 (http://www.celestiamotherlode.net/catalog/moon.php).
<br/>
This data has then been projected using a projection that is close to orthographic
 but that extends the visible portion around each edge for a distance of about 2% of
 the circumference of the moon, since due
 to libration such small portions of the far side
 can sometimes be seen.