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Mapping The Universe

  • 18-08-2013 12:05AM
    #1
    Leader of the Furlings
    Site Banned Posts: 25 ✭


    The Sloan Digital Sky Survey
    The Sloan Digital Sky Survey (SDSS) is one of the most ambitious and influential surveys in the history of astronomy. Over eight years of operations (SDSS-I, 2000-2005; SDSS-II, 2005-2008), it obtained deep, multi-color images covering more than a quarter of the sky and created 3-dimensional maps containing more than 930,000 galaxies and more than 120,000 quasars.



    SDSS data have been released to the scientific community and the general public in annual increments, with the final public data release from SDSS-II occurring in October 2008. That release, Data Release 7, is available through this website.


    Meanwhile, SDSS is continuing with the Third Sloan Digital Sky Survey (SDSS-III), a program of four new surveys using SDSS facilities. SDSS-III began observations in July 2008 and released Data Release 8 in January 2011, Data Release 9 in August 2012, and Data Release 10 in July 2013. SDSS-III will continue operating and releasing data through 2014.
    Data Release 10 contains the first release of APOGEE infrared Galactic spectroscopy as well as cumulative updates to the BOSS optical extragalactic spectroscopy archive.


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