Search for the Matter Clumps in Scales Z ^v|-4|`l ^v|+4| 1

The diagramV - log(1 +z_e) as function of (α, δ) is considered for the quasars. HereV is the apparent visual magnitude,z_e is the emission line redshift,α andδ are the equatorial coordinates. Two opposite extreme 'spots' NE and SE are observed on the sky, where the inclination of the straight line fitting the dependenceV - log(1 +z_e) is maximum and minimum. The coordinates of the centres of these extreme spots are (α_NE,δ_NE) = (282°, +42°) and (α_SE,δ_SE) = (70°, -38°) with errors 5°. A hypothesis of the Superattractor (SA) is proposed to explain such an effect. Two independent tests of this hypothesis are realized. First, the dependence or the frequency a of the absorbers in QSO spectra on (α, δ) is investigated. A region of the larger a is found. The coordinates of its centre are (α, δ) = (82°, - 10°) with error 5°. Second, the cases ofz_a >z_e are plotted in the Mercatorial projection (α, δ). The most of the casesz_α -z_e > 0.02 are concentrated within the circle with radiusR = 34° and centre (α, δ) = (50°, - 15°). The both anomalous regions overlap the Southern extreme spot around SE. The SA direction is (α, δ) = (67°, -21°) with errors about 12°. The redshift of SA isz_SA = 1.7 ± 0.3 that corresponds to the distancer_SA = (3100 ± 300)h^‑1 Mpc for the Hubble constantH₀ = 75h kms^‑1 Mpc^‑1. The SA mass isM_SA ~ 10¹⁸-10²⁰M_⊙. The orientation of the normal to the quasiperiodical large-scale sheet structure on the sky occurs near SA.