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We present an analysis of BVRcIc observations of the field sized around 4' x4' centered at the host galaxy of the gamma-ray burst GRB 021004 with the 6-mBTA telescope of the Special Astrophysical Observatory of the Russian Academyof Sciences. We measured the magnitudes and constructed the color diagrams for311 galaxies detected in the field (S/N > 3). The differential and integralcounts of galaxies up to the limit, corresponding to 28.5 (B), 28.0 (V), 27.0(Rc), 26.5 (Ic) were computed. We compiled the galaxy catalog, consisting of183 objects, for which the photometric redshifts up to the limiting magnitudes26.0 (B), 25.5 (V), 25.0 (Rc), 24.5 (Ic) were determined using the HyperZ code.We then examined the radial distribution of galaxies based on the z estimates.We have built the curves expected in the case of a uniform distribution ofgalaxies in space, and obtained the estimates for the size and contrast of thepossible super-large-scale structures, which are accessible with theobservations of this type.

Study of Faint Galaxies in the Field of GRB 021004