Dwarf galaxies are the most numerous galaxies in the universe, yet are
the least well known. As they represent an important piece in the
galaxy formation and cosmology puzzle it is important to get a handle
on their properties. To that effect we have started a project aimed at
obtaining global photometric parameters of a representative, i.e. as
complete as possible sample of galaxies. This sample consists of all
known galaxies within a distance of 10Mpc. There are approx. 300
galaxies to date in this sample, and a subset of these were imaged,
and these data were supplemented by data from the literature and
statistically analyzed for trends in the global photometric parameter
relations in relation to each other and to the local environmental
density.Evidence for a systematic offset in the photometric parameters
between dwarf galaxies in the two environment classes, i.e. group&field and
cluster, was found. At a given magnitude, the group&field galaxies have
higher surface brightness on average and are smaller than the cluster
dwarfs.
