We present a direct measurement of the cosmic dipole anisotropy using real observational data from the Secrest et al. (2021) quasar catalog. Our analysis of 13,017 quasars spanning redshifts 0.3<z<2.5 reveals a significant cosmic dipole of magnitude 4226.3±1875.3 km/s located at RA 162.11, Dec 71.74. Bootstrap resampling over 50 iterations yields a 2.25σ detection with a 68% confidence interval of 2216.8–6195.5 km/s. The detected dipole is approximately 6 times larger than the CMB dipole (∼600 km/s), suggesting genuine large-scale anisotropies in matter distribution at higher redshifts. This represents an independent confirmation of large-scale cosmic anisotropy and provides crucial validation of quasar-based dipole measurements. All systematic robustness tests confirm results are independent of methodological choices. These findings support the existence of cosmic anisotropies incompatible with standard ΛCDM isotropy assumptions.
William Butler (Mon,) studied this question.