The image was created from Hubble data from proposal 12003: H. Hammel (Space Science Institute), A. Simon-Miller (NASA Goddard Space Flight Center), J. Clarke (Boston University), I. de Pater (University of California, Berkeley), K. Noll (STScI), G. Orton (Jet Propulsion Laboratory), A. Sanchez-Lavega (University of the Basque Country, Spain), and M. Wong (STScI).
F225W (225 nm), F275W (275 nm), FQ378N (378 nm), FQ437N (437 nm), FQ508N (508nm), FQ634N (634 nm), FQ727N (727 nm), FQ889N (889 nm), FQ906N (906 nm), and FQ924N (924 nm)
The image is a composite of separate exposures made by the WFC3 instrument on the Hubble Space Telescope. Three filters were used to sample narrow wavelength ranges. The color results from assigning different hues (colors) to each monochromatic image. In this case, the assigned colors are:
Blue: FQ437N (437 nm)
Green: FQ508N (508nm)
Red: FQ634N (634 nm)