2002ApJ...581L..47L

We report the discovery of LSR 1826+3014, a very faint (V=19.36) star with a very large proper motion (µ=2".38 yr^–1). A low-resolution red spectrum reveals that LSR 1826+3014 is an ultracool red dwarf with spectral type M8.5 V and with a radial velocity v_rad=+77±10 km.s^–1. LSR 1826+3014 is thus the faintest red dwarf ever discovered with a proper motion larger than 2" yr^–1. Optical and infrared photometry suggest that the star is at a distance d=13.9±3.5 pc from the Sun, which implies that it is moving relative to the local standard of rest with a total velocity of 175±25 km .s^–1. The numerical integration of its orbit suggests that LSR 1826+3014 is on a halo-like Galactic orbit.