LAMOST 1: A Disrupted Satellite in the Constellation Draco
  Using LAMOST spectroscopic data, we find a strong signal of a comoving group
of stars in the constellation of Draco. The group, observed near the apocenter
of its orbit, is 2.6 kpc from the Sun with a metallicity of -0.64 dex. The
system is observed as a streaming population of unknown provenance with mass of
about 2.1E4 solar masses and an absolute V band magnitude of about -3.6. Its
high metallicity, diffuse physical structure, and eccentric orbit may indicate
that the progenitor satellite was a globular cluster rather than a dwarf galaxy
or an open cluster.
