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:
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All SDSS data released in our public data releases are considered in the public domain. Any questions about image use, along with the URL of the image in question, should be directed to the ARC Corporate Office via ARC’s Business Manager:
ARC Business Manager
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University of Washington
Seattle, WA 98195