  In this second part of our series of articles on alternative cosmological
models we investigate the observational consequences for the new Weyl-Cartan
model proposed earlier. We review the derivation of the magnitude-redshift
relation within the standard FLRW model and characterize its dependence on the
underlying cosmological model. With this knowledge at hand we derive the
magnitude-redshift relation within our new Weyl-Cartan model. We search for the
best-fit parameters by using the combined data set of 92 SNe of type Ia as
compiled by Wang, which is based on recent supernova data of Perlmutter et al.
and Riess et al. Additionally, we compare our best-fit parameters with the
results of several other groups which performed similar analysis within the
standard cosmological model as well as in non-standard models.
