Distant cluster candidate at z = 1.53. The large red circle is a 500 kpc radius circle. Blue circles are galaxies with spectroscopic redshifts outside the z =  [1.52;1.54] interval. The two magenta squares are the two known spectroscopic redshifts inside the z =  [1.52;1.54] interval. Small red circles are the near-infrared-based photometric redshifts inside the z =  [1.43;1.63] interval. White contours are the XMM-LSS contours.