Petipa crater and its ray system on Mercury.  Approximate color representation combining three images acquired by MESSENGER Wide Angle Camera (EW1017067825I, EW1017067817G, EW1017067813F) with <b>I</b> (996.2 nm), <b>G</b> (748.7 nm), and <b>F</b> (433.2 nm) filters.  Combined in GIMP software as RGB (Red-Green-Blue), and then rotated so that north is up.<br><p>Statistics for <b>I</b> image:<br>
Emission Angle: 15.9<br>
Incidence Angle: 14.2<br>
Latitude: 11.3<br>
Longitude: 21.2<br></p>
Phase Angle: 28.1
James Stuby based on NASA images
<a rel="nofollow" class="external text" href="https://pilot.wr.usgs.gov/">PILOT</a>, Planetary Image Locator Tool, USGS Astrogeology Science Center