[Distance from the Sun] The semi-major axis of Mars' orbit about the sun is 1.52 Astronomical Units (A.U.) or 142 million miles (228 million km). [Distance from Earth] At the 2005 closest approach, Mars was 43 million miles (69 million kilometers) from Earth. At the 2005 opposition event, Mars was 43.7 million miles (70.3 million kilometers) from Earth.
This image was created from HST proposal 10770: K. Noll (The Hubble Heritage Team, STScI), J. Bell (Cornell Univ.), M. Wolff (Space Science Inst.), H. Bond, C. Christian, L. Frattare, F. Hamilton, W. Januszewski, Z. Levay, M. Mutchler, and T. Royle (The Hubble Heritage Team, STScI).