Credit & Copyright: . W. Buie
(Lowell Observatory),
D. J. Tholen (U. Hawaii), and K. Horne (St. Andrews)
Explanation:
Pluto is the only planet in our
Solar System remaining unphotographed by a passing
spacecraft. Distant
Pluto and its moon Charon therefore remain somewhat mysterious.
In addition to
direct imaging by the
Hubble Space Telescope,
careful tracking of brightness changes that
occur as each object eclipses the other have
allowed astronomers to build up the
above black & white surface maps.
These maps depict the face of
Pluto (left)
that always faces Charon, and the face of Charon
that always faces away from
Pluto. The rectangular pixels are an artifact of the mapping software. The
Pluto-Kuiper Express mission is tentatively
planned for launch in 2004 and might encounter Pluto
as early as 2012.
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NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.
Based on Astronomy Picture
Of the Day
Publications with keywords: Pluto - Charon - Solar System
Publications with words: Pluto - Charon - Solar System
See also: