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   61024
   Chamaeleon cloud is one of the star forming region,which consists of
   three dark clouds,Cha I ,Cha II and Cha III. So far We made observation
   of Cha I and Cha II,we detect 28 and 8 pre-main-sequence (PMS) stars
   from Cha I,II respectively. They contain at least 3 class I stars in
   Cha I, but no class I stars are detected in Cha II. An average of
   luminosity is almost even, but that of Cha II is a little smaller than
   Cha I. Now we thought magnetic activity of PMS star is origin of X-
   ray,how about Cha III? So we propose a observation of Cha III.
   Comparing with Cha I and II, we can get further knowledge of PMS stars.
   Moreover,there could be some protostars,detection of them give us
   precious information. Observation of Cha III enable us to reveal
   evolution of PMS stars.
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