It's important to note that Mars' orbit is not perfectly circular, but slightly elliptical. This means its distance from the sun varies throughout its orbit.
* At its closest point (perihelion), Mars is about 206.7 million kilometers (128.4 million miles) from the sun.
* At its farthest point (aphelion), it is about 249.2 million kilometers (154.6 million miles) from the sun.