No, all the planets have orbits that are technically ellipses with low eccentricity. Apart from Mercury all the other seven planets have orbits that are very nearly circular, but the Sun is offfset from the centre of the circle by a different amount for each planet depending on the eccentricity of the orbit.
Elliptical
The planets do not circle the sun in any specific shape. Their orbits around the sun are more elliptical than circular, and each planet has its own unique elliptical orbit.
path
One planet orbiting a sun, might have a perfectly circular orbit. However, many planets orbiting a sun, in a galaxy, in a universe, influence and distort each others orbits. Add to this the influences of the rest of the universe, and circular orbits become elongated circles: ellipses.
no because stars can orbit each other
Kepler discovered that the orbit of each planet is an ellipse rather than a perfect circle. The planet with an orbit that is closest to a circle is Venus.
I can tell you that it is not a circle.
Elliptical
Ellipse..
The planets do not circle the sun in any specific shape. Their orbits around the sun are more elliptical than circular, and each planet has its own unique elliptical orbit.
path
This orbit is called an ellipse. An oval shape.
One planet orbiting a sun, might have a perfectly circular orbit. However, many planets orbiting a sun, in a galaxy, in a universe, influence and distort each others orbits. Add to this the influences of the rest of the universe, and circular orbits become elongated circles: ellipses.
no because stars can orbit each other
An eliptical orbit. In theory a planet could also have a circular orbit, but no planet that we know of has a perfectly circular orbit, although some have a nearly circular orbit.
Through gravitational pull. The largest object will have smaller objects orbit it (objects close in size will orbit each other, but no planet is close to the size of the sun)
Each planet has one orbit that is just called the orbit of . . . .