  The nuclear astrophysics setup at the Institute for Nuclear Physics,
University of Cologne, Germany is dedicated to measurements of total and
partial cross sections of charged-particle induced reactions at astrophysically
relevant energies. These observables are key ingredients for reaction network
calculations of various stellar scenarios, and crucial for the understanding of
the nucleosynthesis of elements. The experiments utilize the high-efficiency
$\gamma$-ray spectrometer HORUS, and the 10 MV FN-Tandem accelerator. An
updated target chamber as well as further experimental methods established in
the last years will be presented which allow to measure cross sections down to
the nb region. The reliability of the measured cross sections is proven by a
$^{89}$Y(p,$\gamma$)$^{90}$Zr commissioning experiment. Additionally, an
application for nuclear astrophysics will be presented. The results of a
$^{93}$Nb(p,$\gamma$)$^{94}$Mo experiment will be discussed as well as their
deviations compared to formerly reported results.
