*************************************************************************
   61195
   We propose to observe Hercules A with ASCA for 40 ksec. In the soft X-
   ray image, it has X-ray emission clearly extended on a Mpc scale, but
   there is no strong evindence in optical band for the presence of
   cluster of galaxies in its environment. With ASCA, we can determine
   accurately the properties of the high energy X-ray spectrum of this
   peculiar object. If Hercules A is indeed dominated by thermal emission,
   this would strongly argue for a cluster environment and thus would
   resolve a long-standing debate. Alternatively Her A may be proven to
   have AGN component in it X-ray emission, if the temperature is too low
   or if a power-law component is contained.
 *************************************************************************