Question

Is the motion of all planets of our solar system in same dimension?

Answer 1

They are all 3 dimensional. Only the earth orbits the sun along the ecliptic. The ecliptic is by definition the ‘flat’ baseline i.e. the plane of the earth’s orbit which acts as reference for the solar system.

Other solar system objects’ inclinations to the ecliptic are as follow, values in degrees:

Moon 5.144 (If it was zero there would be an eclipse every lunar month. In reality they only occur when new moons - solar eclipse or full moons - lunar eclipse occur at the nodes - the points where the lunar orbit crosses the ecliptic.)

Answer 2

They are all 3 dimensional. Only the earth orbits the sun along the ecliptic. The ecliptic is by definition the ‘flat’ baseline i.e. the plane of the earth’s orbit which acts as reference for the solar system.

Other solar system objects’ inclinations to the ecliptic are as follow, values in degrees:

Moon 5.144 (If it was zero there would be an eclipse every lunar month. In reality they only occur when new moons - solar eclipse or full moons - lunar eclipse occur at the nodes - the points where the lunar orbit crosses the ecliptic.)