We present the discovery of a new extreme high proper motion object (~3.5 arcsec/year) which we classify as an ultracool subdwarf with . It has a formal spectral type of sdM9 but also shows L-type features: while the VO bands are completely absent, it exhibits extremely strong TiO absorption in its optical spectrum. With a radial velocity of about -160 km s-1 and a rough distance estimate of 16–24 pc, it is likely one of the nearest halo members crossing the Solar neighbourhood with a heliocentric space velocity of km s-1.
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