These HST data are from proposal 10774: H.A. Weaver (JHU/APL), S.A. Stern and J.R. Spencer (SwRI), M.W. Buie (Lowell Obs.), E. Young, L.A. Young, and A.J. Steffl (SwRI), M. Mutchler (STScI) and W.J. Merline (SwRI).
NASA, ESA, H. Weaver (JHU/APL), A. Stern (SwRI), and the HST Pluto Companion Search Team
This image is black and white and represents the range of brightness recorded by the ACS/HRC camera.