 Pluto came to be seen as the largest member of a new class of objects, and some astronomers stopped referring to Pluto as a planet.Pluto's eccentric and inclined orbit, while very unusual for a planet in the Solar System, fits in well with the other KBOs.New York City's newly renovated Hayden Planetarium did not include Pluto in its exhibit of the planets when it reopened as the Rose Center for Earth and Space in 2000.