  There are several types of Galactic sources that can potentially accelerate
charged particles up to GeV and TeV energies. We present here the results of
our observations of the source class of gamma-ray binaries and the subclass of
binary systems known as novae with the MAGIC telescopes. Up to now novae were
only detected in the GeV range. This emission can be interpreted in terms of an
inverse Compton process of electrons accelerated in a shock. In this case it is
expected that protons in the same conditions can be accelerated to much higher
energies. Consequently they may produce a second component in the gamma-ray
spectrum at TeV energies.
  The focus here lies on the four sources: nova V339 Del, SS433, LS I +61 303
and V404 Cygni. The binary system LS I +61 303 was observed in a long-term
monitoring campaign for 8 years. We show the newest results on our search for
superorbital variability, also in context with contemporaneous optical
observations. Furthermore, we present the observations of the only
super-critical accretion system known in our galaxy: SS433. Finally, the
results of the follow-up observations of the microquasar V404 Cygni during a
series of outbursts in the X-ray band and the ones of the nova V339 Del will be
discussed in these proceedings.
