  We report on multiwavelength observations of the supersoft ultraluminous
X-ray source (ULX) in NGC 247 made with the Chandra X-ray Observatory and
Hubble Space Telescope (HST). We aligned the X-ray and optical images using
three objects present on both and identified a unique, point-like optical
counterpart to the ULX. The X-ray to optical spectrum is well fitted with an
irradiated disk model if the extinction measured for Cepheids in NGC 247 is
used. Assuming only Galactic extinction, then the spectrum can be modeled as a
standard thin accretion disk. Either result leads to the conclusion that a disk
interpretation of the X-ray spectrum is valid, thus the source may be in the
X-ray thermal state and contain an intermediate mass black hole of at least 600
solar masses. In contrast to other supersoft ULXs which are transient and
exhibit a luminosity temperature relation inconsistent with a disk
interpretation of the X-ray emission, the NGC 247 ULX has a relatively steady
flux and all available X-ray data are consistent with emission from a disk in
the thermal state.
