Jupiter's moon Ganymede.
National Oceanic and Atmospheric Administration
<a rel="nofollow" class="external free" href="http://sos.noaa.gov/download/dataset_table.html">http://sos.noaa.gov/download/dataset_table.html</a> (archived at <a rel="nofollow" class="external free" href="https://web.archive.org/web/20111028055701/http://sos.noaa.gov/images/fullsize/Solar_System/ganymede.jpg">https://web.archive.org/web/20111028055701/http://sos.noaa.gov/images/fullsize/Solar_System/ganymede.jpg</a> within <a rel="nofollow" class="external free" href="https://web.archive.org/web/20120301030706/http://sos.noaa.gov/download/dataset_table.html">https://web.archive.org/web/20120301030706/http://sos.noaa.gov/download/dataset_table.html</a>)