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The National Optical Astronomy Observatory allows the use of derivative works, and other transformations of the original work strictly for educational and research purposes, subject to the general conditions stated above.
The copyright holder of this file allows its use on WIKIMEDIA projects. Jeffery Hayes images may not be used to constitute, state or imply endorsement by Jeffery Hayes of an individual, commercial product, process, service or activity. Use of Jeffery Hayes images in publicity, promotion, or advertising is prohibited without prior written consent from Jeffery Hayes.
Jeffery Hayes allows the use of derivative works, and other transformations of the original work strictly for use on WIKIMEDIA projects only, subject to the general conditions stated above.
