What two things are unique about pluto's orbit around the sun?

The orbit of Pluto is unusual in several ways. It is inclined more than 17° from the ecliptic (the plane in which the orbits of the planets lie). The orbit is also more eccentric (far from circular) than any other planetary orbit. At times, Pluto is closer to the Sun than the orbit of Neptune.

from:http://www.nasm.si.edu/ceps/etp/pluto/pluto_orbit.html

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