Resolving the Cluster-Lensed Sextuple Quasar SDSSJ2222+2745

We propose deep multiband imaging of the newly discovered large separation lensed quasar, SDSSJ2222+2745. This system is only the third known of its kind, and uniquely features the largest observed image multiplicity {at least 6}, three known images close to the cluster core, and the highest redshift quasar {z=2.8}. The cluster also lenses a galaxy at z=2.3 into a giant arc. With the proposed imaging we will precisely measure the three demagnified images of the quasar close to the center of the cluster, detect the 7th image predicted by the lens model, identify additional lensed galaxies, resolve the star formation in the giant arc and the quasar host, measure an upper limit for the mass of the black hole at the centers of the cluster galaxies, and compute a precise and accurate lens model that will form the foundation of many future studies.