CCD artefact. In CCD charge from one pixel is carried to the edge of the chip to be read, when the signal is too strong it bleeds into neighboring pixels. This

CCD artefact. In CCD charge from one pixel is carried to the edge of the chip to be read, when the signal is too strong it bleeds into neighboring pixels. This is how CCD works: https://upload.wikimedia.org/wikipedia/commons/thumb/6/66/CCD_charge_transfer_animation.gif/250px-CCD_charge_transfer_animation.gif https://upload.wikimedia.org/wikipedia/commons/thumb/6/66/CC...