English: The nucleus of NGC 4494, with its dust ring, as seen by WFPC2 on Hubble Space Telescope, with filter F702W. From data release U3CM6602R (1999-04-10).
This file is in the public domain because it was created by NASA and ESA. NASA Hubble material (and ESA Hubble material prior to 2009) is copyright-free and may be freely used as in the public domain without fee, on the condition that only NASA, STScI, and/or ESA is credited as the source of the material. This license does not apply if ESA material created after 2008 or source material from other organizations is in use.