Mars

The semi-major axis of Mars' orbit about the sun is 1.52 Astronomical Units (A.U.) or 142 million miles (228 million km).

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).

F250W (250 nm), F502N (502 nm), F658N (658 nm)

NASA, ESA, The Hubble Heritage Team (STScI/AURA), J. Bell (Cornell Univ.) and M. Wolff (Space Sci Inst.)