  The discovery of an HI cloud with peculiar properties at equatorial
coordinates (J2000) ra=07h49m, dec=04d30m is presented. The HI object was
detected at 21cm using the 300-m NAIC Arecibo telescope. Subsequent follow-up
high-resolution observations with the NRAO Very Large Array (VLA) telescope at
L-Band revealed more details about its morphology. The most intriguing aspect
of the object is the clear velocity gradient of 1 km/s, which is present in the
data, an indication of either rotation or expansion. The gas appears to be
cold, and its morphology is somewhat elliptical with clumpy substructure.
Assuming disk rotation, the dynamical mass could be determined as a function of
distance.Depending on the exact nature of the velocity gradient in the HI
cloud, we can reach some preliminary conclusions about the nature of the
object. Expansion would imply association with a circumstellar envelope of an
evolved AGB star, while in the case of rotation, a comparison between the
visible and the dynamical mass can lead to some preliminary conclusions. A
common feature of those conclusions is the presence of a gravitational
potential well, which is required to account for the rotation of the trapped HI
gas. This potential well could be associated with a dark galaxy or some other
exotic object.
