Determination of the Galaxy Cluster Orientation Using X-ray Images by
  FOCAS Method
  In our work we considered orientations of bright X-ray halos of the galaxy
clusters (mainly Abell clusters). 78 appropriate clusters were selected using
data from Xgal sample of extragalactic objects in XMM-Newton observation
archive. Position angles and eccentricities of these halos were calculated
applying FOCAS method. No privileged orientations were found.
