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Sloan Digital Sky Survey. L'utente che ha caricato in origine il file è stato Jcpag2012 di Wikipedia in inglese.

Image Use Policy ( http://www.sdss.org/collaboration/#image-use )

Our Image Use Policy is that any SDSS image on the SDSS Web site may be downloaded, linked to, or otherwise used for any purpose, provided that you maintain the image credits. Unless otherwise stated, images should be credited to the Sloan Digital Sky Survey. We provide all images on a Creative Commons Attribution license (CC-BY).

We note that

• Your use of the image does not imply our endorsement of any product or service
• 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 www.sdss.org.

All SDSS data released in our public data releases is considered in the public domain.

Any questions about image use should be directed to the ARC Corporate Office via ARC’s Business Manager as follows:

Michael Evans
ARC Business Manager
c/o Department of Astronomy, Box 351580
University of Washington 
Seattle, WA 98195
Phone: +1-206-685-7857
Email: evansm@uw.edu

Please provide the exact URL of the image you are inquiring about.

If you have further questions about the appropriate usage or credits for SDSS images, please contact the helpdesk ( helpdesk@sdss.org ).

Official SDSS Acknowledgment ( https://www.sdss.org/collaboration/#OfficialSDSSAcknowledgment )

We request that the following be added to the acknowledgment section of any paper using data from the SDSS.

Funding for the Sloan Digital Sky Survey IV has been provided by the Alfred P. Sloan Foundation, the U.S. Department of Energy Office of Science, and the Participating Institutions. SDSS acknowledges support and resources from the Center for High-Performance Computing at the University of Utah. The SDSS web site is www.sdss.org.

SDSS is managed by the Astrophysical Research Consortium for the Participating Institutions of the SDSS Collaboration including the Brazilian Participation Group, the Carnegie Institution for Science, Carnegie Mellon University, the Chilean Participation Group, the French Participation Group, Harvard-Smithsonian Center for Astrophysics, Instituto de Astrofísica de Canarias, The Johns Hopkins University, Kavli Institute for the Physics and Mathematics of the Universe (IPMU) / University of Tokyo, Lawrence Berkeley National Laboratory, Leibniz Institut für Astrophysik Potsdam (AIP), Max-Planck-Institut für Astronomie (MPIA Heidelberg), Max-Planck-Institut für Astrophysik (MPA Garching), Max-Planck-Institut für Extraterrestrische Physik (MPE), National Astronomical Observatories of China, New Mexico State University, New York University, University of Notre Dame, Observatório Nacional / MCTI, The Ohio State University, Pennsylvania State University, Shanghai Astronomical Observatory, United Kingdom Participation Group, Universidad Nacional Autónoma de México, University of Arizona, University of Colorado Boulder, University of Oxford, University of Portsmouth, University of Utah, University of Virginia, University of Washington, University of Wisconsin, Vanderbilt University, and Yale University.