描述：
Planet Pluto Bitmap Trace. This is the 90 degree face as taken by the Hubble Telescope. The Gimp was used to clean up, to rescale and reduce colours. The original public domain images can be found at http://upload.wikimedia.org/wikipedia/commons/0/0b/Pluto-map-hs-2010-06-a-faces.jpg

额外信息