  UVMag is a space project currently under R&D study. It consists in a
medium-size telescope equipped with a spectropolarimeter to observe in the UV
and optical wavelength domains simultaneously. Its first goal is to obtain time
series of selected magnetic stars over their rotation period, to study them
from their surface to their environment, in particular their wind and
magnetospheres. As the star rotates it will be possible to reconstruct 3D maps
of the star and its surroundings. The second goal of UVMag is to obtain two
observations of a large sample of stars to construct a new database of UV and
optical spectropolarimetric measurements.
