This image of comet P/Hartley 2 was taken through the LW7 filter (8.5-10.7 micron) of ISOs camera ISOCAM by a team headed by J. Crovisier (processing done by B. Altieri and K. Okamura). It is one of the largest images of a Solar System object ever obtained by ISOCAM, covering 4 by 4 arcmin, showing the nucleus and a large fraction of its tail.