This image was created from HST data from proposal 12050: J.-Y. Li (University of Maryland, College Park), L. McFadden (NASA/GSFC), P. Thomas (Cornell University), C. Russell (University of California, Los Angeles), M. Mutchler (STScI), and M. Rayman, C. Raymond, and S. Weinstein-Weiss (JPL/Caltech).
This image is a composite of separate exposures made by the WFC3 instrument on the Hubble Space Telescope (HST). Each filter was used to sample a narrow wavelength range. The composite colors result from assigning different hues (colors) to each monochromatic (grayscale) image associated with an individual filter. In this case, the assigned colors are: