We report the discovery of a new M9.0 dwarf at only 8.2 pc , which we identified in our search for nearby ultracool dwarf ( I - J \geq 3.0 , later than M8.0 ) in the DENIS database .
We measure a very high proper motion of 2.5 arc-sec/yr .
The PC3 index measured from its low-resolution spectrum gives a spectrophotometric distance of 8.2 pc .
This makes it the third closest M9.0 dwarf .