Planets orbit the Sun – The Sun’s gravity keeps them moving in circles (ellipses).

Orbits are elliptical – Not perfect circles, but stretched out a little.

Sun is at the center – All planets revolve around it.

Same direction – All planets move around the Sun counterclockwise.

Flat path – Orbits lie on the same flat surface called the ecliptic plane.

Closer = faster – Inner planets like Mercury move faster.

Farther = slower – Outer planets like Neptune move slowly.

Rotation too – Planets spin on their own axis while orbiting the Sun.

Gravity and inertia – Gravity pulls them in, inertia (motion) keeps them moving forward.

Never crash – Because orbits are stable and paths don’t usually cross.