This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
IrisOrbit. The orbit of the asteroid Iris compared with the orbits of Earth Mars and Jupiter Transferred from org en transferred to Commons by User MARKELLOS using de php CommonsHelper ReykYO Original uploader was Reyk at org en Released into the public domain by the author en Reyk original upload log page en IrisOrbit