# Where are the two recently confirmed unusual brown dwarfs?

The News report of two confirmed unusual T-type brown dwarfs but they don't tell where in space or on the night sky they were found or how far they are from the Earth/Sun. The brown dwarfs are WISE 0414 and WISE 1810. Does anyone know where they are located?

If we proceed with absolute magnitude–spectral type relations for field brown dwarfs (Dupuy, & Liu 2012) and designate the spectral type of WISEA 1810−1010 to be T0, wildly discrepant distances are found for different passbands. We find a distance of ∼14 pc using WISEA 1810−1010’s W2 magnitude, but a distance of ∼67 pc using the K−band magnitude. Combined with our measured proper motion (Table 1), these distance estimates lead to a $$V_\mathrm{tan}$$ range of 77–360 km s−1. For WISEA 0414−5854, a similarly large distance range is found (52–94 pc), corresponding to a $$V_\mathrm{tan}$$ range of 170–307 km s−1. Parallax measurements for these objects will be necessary to determine accurate $$V_\mathrm{tan}$$ values. Nevertheless, it is clear that both sources are high velocity objects consistent with membership in the metal-poor Galactic thick disk or halo.