OSIRIS narrow-angle camera image captured on 25 August 2014 from a distance of about 50 km from the surface of Comet 67P/Churyumov–Gerasimenko. The image focuses on the regional boundaries between Aten, Bapi, Khepry and Aker on the comet’s large lobe. The smooth neck region, Hapi, is clearly visible in the foreground.
For context and scale click here.
For more information, see the blog: Getting to know Rosetta’s comet: boundary conditions