Zoom images of DC257.3-2.5. The polygon traces the coreshine emission region. This emission could benefit from the presence of the (probable) protostar situated on its right or of the IRAS source at the bottom, though the link of the IRAS source with the cloud has not been checked yet and is possibly a chance alignment. There is also possibly some coreshine on the righthand side of the (proto)star but it is highly uncertain. Same as Fig. B.2.