A heliocentric system.
No planet travels around the world. All planets travel around the sun. This is called the solar system.
In any solar system; that's what planets do.
They rotate. Travel around the sun is called revolving.
Planets
The planets travel around the sun in elliptical orbits due to the sun's gravitational pull. This movement is known as the heliocentric model, with the sun at the center of the solar system, contrary to the geocentric model where the Earth was believed to be at the center.
A gravitational orbit
if you mean the imaginary line that the planets travel on it's called an 'Orbit' or 'obital path'
The planets orbit (travel) around the Sun.
Objects in our solar system, including planets, asteroids, and comets, travel around the Sun in elliptical orbits. The planets orbit the Sun in nearly circular paths along a plane known as the ecliptic. Comets and asteroids can have more eccentric and tilted orbits compared to the planets.
The path on which planets travel is called their orbit.
Solar System.
Solar System.