solar wind evaporated Ison comet

some months ago when i read the news about comet coming recently named Ison which said that the object will reach  1200000km nearby the sun ,i wrote that this object (comet)wont come back to its original place because of Roche limit of sun gravity field  related such object flexibility.
  in fact none of terrestrial planets and moons cannot near by to such distance of sun.
      in this case the strength of solar wind and solar corona evaporated the comet.