We present Subaru/HiCIAO H -band high-contrast images of the debris disk around HIPÂ 79977 , whose presence was recently inferred from an infrared excess . Our images resolve the disk for the first time , allowing characterization of its shape , size , and dust grain properties . We use angular differential imaging ( ADI ) to reveal the disk geometry in unpolarized light out to a radius of \sim 2″ , as well as polarized differential imaging ( PDI ) to measure the degree of scattering polarization out to \sim 1 \farcs 5 . In order to strike a favorable balance between suppression of the stellar halo and conservation of disk flux , we explore the application of principal component analysis ( PCA ) to both ADI and reference star subtraction . This allows accurate forward modeling of the effects of data reduction on simulated disk images , and thus direct comparison with the imaged disk . The resulting best-fit values and well-fitting intervals for the model parameters are a surface brightness power-law slope of S _ { \mathrm { out } } = -3.2 ~ { } [ -3.6 , -2.9 ] , an inclination of i = 84 ^ { \circ } ~ { } [ 81 ^ { \circ } , 86 ^ { \circ } ] , a high Henyey-Greenstein forward-scattering parameter of g = 0.45 ~ { } [ 0.35 , 0.60 ] , and a non-significant disk–star offset of u = 3.0 ~ { } [ -1.5 , 7.5 ] \mathrm { AU } = 24 ~ { } [ -13 , 61 ] mas along the line of nodes . Furthermore , the tangential linear polarization along the disk rises from \sim 10 % at 0 \farcs 5 to \sim 45 % at 1 \farcs 5 . These measurements paint a consistent picture of a disk of dust grains produced by collisional cascades and blown out to larger radii by stellar radiation pressure .