Are the nine planets in the solar system running on the same plane?

Nine planets? Now it's the eighth national congress ~

Since the landlord has a soft spot for Pluto, let's focus on Pluto.

Pluto was once considered as a planet outside Neptune's orbit at the beginning of its discovery, but it turns out that it is not. For example, from1979 65438+1October 2 1 to 65438+March 0999 14, Pluto is closer to the sun than Neptune. This is because Pluto's orbital eccentricity and inclination to the ecliptic plane are greater than those of other planets. Pluto is closer to the sun than Neptune at perihelion, and Neptune becomes the farthest planet from the sun. Every once in a while, Pluto and Neptune will approach each other, and the orbits of the two planets will cross on the ecliptic projection map.

As can be seen from this picture, the "nine planets" of the solar system obviously do not run on the same plane.