Mapping a duck: geological features and region definitions on comet 67P/Churyumov-Gerasimenko

The data from the Rosetta mission have permitted a reconstruction of shape comet 67P/Churyumov-Gerasimenko and an identification terrains features forming surface. peculiar has made it challenging to project these geological onto unambiguous frame. As result, maps published date are created on top images, making them dependent viewing angle image resolution. To overcome this limitation, we present integrated set northern hemisphere comet, displayed in projection. new combine landmarks previous studies single framework completed with newly identified features. We located OSIRIS images projected surface three-dimensional model comet. For each region, Quincuncial adaptive closed Kohonen (QuACK) map QuACK solves spatial ambiguity issues reduces area distortions classical global projections, which particularly affect polar regions. outcome research is individual that both These analysed grouped by similarities terrain morphology find common characteristics allow expanding our knowledge formation processes comets. Based analysis, north-south dichotomy confirmed, redefinition regional boundaries proposed for Anubis-Atum Aker-Babi frontiers. This fills gap field mapping provides innovative method treating highly irregular bodies.