This image was acquired 1 August at 04:48 CEST (02:48 GMT) by the OSIRIS Narrow Angle Camera on board ESA’s Rosetta spacecraft. The distance was approximately 1000 km. Note that the dark spot is an image artefact.
Credits: ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA