  The Cartwheel, archetypical ring galaxy with strong star formation activity
concentrated in a peculiar annular structure, has been imaged with the CHANDRA
ACIS-S instrument. We present here preliminary results, that confirm the high
luminosity detected earlier with the ROSAT HRI. Many bright isolated sources
are visible in the star-forming ring. A diffuse component at luminosity of the
order of 10E.40 cgs is also detected.
