SDSS Image Usage Policy
Any SDSS image on the SDSS Web site may be downloaded, linked to, or otherwise used for non-commercial purposes, provided that you agree to the following conditions:
If the image is to be used on a Web page, we also ask as a courtesy that you provide a link back to our site at http://www.sdss3.org/
SDSS Images may be used in commercial publications, or for other commercial purposes, only with the explicit approval of the Astrophysical Research Consortium (ARC). Requests for such use should be directed to the ARC Corporate Office via ARC's Business Manager as follows:
ARC Business Manager
c/o Department of Astronomy, Box 351580
University of Washington
Seattle, WA 98195
Please provide the exact URL of the image you are requesting.
If you have further questions about the appropriate usage of SDSS images, please contact the SDSS helpdesk.