Pluto is the smallest planet in our solar system and can only be seen by telescope. Pluto is millions and millions miles
away from earth and is the coldest planet. Pluto is usually the outermost planet in the solar system, and is the only
planet that has not been visited by a spacecraft from Earth. This mysterious planet is really a double planet system, since
its moon, Charon, is very close to Pluto and about the
Unlike most planets, but similar to Uranus, Pluto rotates with its poles almost in its orbital plane. Pluto's rotational
axis is tipped 122 degrees. When Pluto was first discovered, its relatively bright south polar region was the view seen from
the Earth. Pluto appeared to grow dim as our viewpoint gradually shifted from nearly pole-on in 1954 to nearly equator-on
in 1973. Pluto's equator is now the view seen from Earth.
