  We report the first resolved scattered light images of the circumstellar dust
disk around the old Pre-Main Sequence star HD 141569 A. The disk seen in
HST/NICMOS2 images shapes a bright annulus inclined at 37.5 degrees +/- 4.5
degrees from edge-on. This ring peaks at 325+/-10 AU from the star with a
characteristic width of ~150 AU. At 1.6 microns, the dust grains scatter a
total flux density of at least 4.5 +/- 0.5 mJy. Our disk model using the
spatial distribution implied by the images does not explain the 10 microns
excess and requires an additional grain population closer to the star. Some
similarities and differences with the dust annulus surrounding HR 4796 A are
pointed out.
