Close-up of galaxy NGC 6166, by HST (ACS: 475 and 2x814 nm; WFPC2: 555 nm).
NASA/ESA - The Hubble Legacy Archive (HLA): Space Telescope Science Institute (STScI), the Space Telescope European Coordinating Facility (ST-ECF), and the Canadian Astronomy Data Centre (CADC) - zoranknez (FITS Liberator)
Hubble Space Telescope