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	Welcome to the DR2  Development site!!!   This website presents data from the Sloan Digital Sky Survey, a project to make a map of a large part of the universe. We would like to show you the beauty of the universe, and share with you our excitement as we build the largest map in the history of the world.	News   The site hosts data from Data Release 2 (DR2). About DR2, what's new on this site, and known problems. More...	For Astronomers   A separate branch of this website for professional astronomers (English)   More...

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	Welcome to the DR2  Development Catalog Archive Server site providing public access to SDSS data for professional astronomers. The following databases are available BESTDR2 Default, the best Photo, Spectro and Tiling data TARGDR2 Photo, frozen at time of target selection BESTDR1 The Best data version for the previous release. Stetson SDSS matches to Stetson dataset. RC3 SDSS matches to RC3 catalog.		News This site contains data from Data Release 2 (DR2). Please see the Site News page, What's New in DR2 page and the Known Problems page for more information.    To run a query on a DR2 database other than the default listed on the left, name the database explicitly in the query. For example: SELECT TOP 100 * FROM TARGDR7..PhotoObj   WHERE r<17 and r-i>2

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