  A medium resolution 1.0-2.5um spectrum of the brown dwarf, Gliese 229B has
been obtained using CGS4 on UKIRT. In addition to the broad spectral structure
seen in earlier low resolution observations, the new spectrum reveals a large
number of absorption lines, many of which can be identified with water vapor.
Water and methane are both shown to be strong absorbers in the near-infrared
spectrum of the object. Several spectral features in Gl 229B that are
attributable to methane match ones seen in reflection in the giant outer
planets and, in particular, Titan.
