Where are we in the universe

Millions of sources in the cosmos have been located by robotic telescopes and various data recorded for them. From that, maps have been created that show how the galaxies are distributed in the sky around our galaxy. Figure 1 shows one such map generated with many tens of thousands of galaxies. At the apex we find our galaxy, but the scale of this map is huge. This is from one such survey, the Sloan Digital Sky Survey (SDSS), and another is the 2 degree Field Galaxy Redshift Survey (2dF#1GRS). In a recent paper, 2 a colleague and I showed from the Fourier analyses on galaxy number counts N(z) calculated for both SDSS and 2dF GRS, that galaxies have preferred periodic redshifts. Discrete Fourier Transforms were calculated from N(z), the histograms determined by binning (counting) the observed redshifts of the survey galaxies between z − δz/2 and z + δz/2 as a function of redshift z, where generally δz = 10 -3 was used. Data for 427,513 galaxies from the SDSS Fifth Data Release were obtained where the data are primarily sampled from within about -10 to 70 degrees Right Ascension (RA) from the celestial equator. Also, data for 221,414 galaxies were obtained from the 2dF GRS where the data are confined to within 2 degrees RA balanced between the Northern and Southern hemispheres. The analysis found significant redshift spacings of ∆z = 0.0102, 0.0246, and 0.0448 in the SDSS, with significance at a level of at least 4σ, 3 and strong agreement