  From the Sun we know that coronal mass ejections (CMEs) are a transient
phenomenon, often correlated with flares. They have an impact on solar mass-
and angular momentum loss, and therefore solar evolution, and make a
significant part of space weather. The same is true for stars, but stellar CMEs
are still not well constrained, although new methodologies have been
established, and new detections presented in the recent past. So far, probable
detections of stellar CMEs have been presented, but their physical parameters
which are not directly accessible from observations, such as electron density,
optical thickness, temperature, etc., have been so far not determined for the
majority of known events. We apply cloud modeling, as commonly used on the Sun,
to a known event from the literature, detected on the young dMe star V374 Peg.
This event manifests itself in extra emission on the blue side of the Balmer
lines. By determining the line source function from 1D NLTE modeling together
with the cloud model formulation we present distributions of physical
parameters of this event. We find that except for temperature and area all
parameters are at the upper range of typical solar prominence parameters. The
temperature and the area of the event were found to be higher than for typical
solar prominences observed in Balmer lines. We find more solutions for the
filament than for the prominence geometry. Moreover we show that filaments can
appear in emission on dMe stars contrary to the solar case.
