  Galaxy number counts in the $K$-, $H$-, $I$-, $R$-, $B$- and $U$-bands from
the Durham Extragalactic Astronomy and Cosmology catalogue could be well-fitted
over their whole range using luminosity function (LF) parameters derived from
the SDSS at the bright region and required only modest luminosity evolution
with the steepening of the LF slope ($\alpha$), except for a sudden steep
increase in the $B$-band and a less steep increase in the $U$-band at faint
magnitudes that required a starburst evolutionary model to account for the
excess faint number counts. A cosmological model treating Hubble expansion as
an Einstein curvature required less correction at faint magnitudes than a
standard $\Lambda$CDM model, without requiring dark matter or dark energy. Data
from DR17 of the SDSS in the $g$, $i$, $r$, $u$ and $z$ bands over two areas of
the sky centred on the North Galactic Cap (NGC) and above the South Galactic
Cap (SGC), with areas of 5954 and 859 sq. deg., respectively, and a combined
count of 622,121 galaxies, were used to construct bright galaxy number counts
and galaxy redshift/density plots within the limits of redshift $\leq0.4$ and
mag $\leq20$. Their comparative densities confirmed an extensive void in the
Southern sky with a deficit of 26\% out to a redshift $z$$\leq$0.15. Although
not included in the number count data set because of its incompleteness at
fainter magnitudes, extending the SDSS redshift-number count survey to fainter
and more distant galaxies with redshift $\leq1.20$ showed a secondary peak in
the number counts with many QSOs, bright X-ray and radio sources, and evolving
irregular galaxies with rapid star formation rates. This sub-population at
redshifts of 0.45--0.65 may account for the excess counts observed in the
$B$-band.
