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    Maps of Thousands of Nearby Galaxies tagged posts

    Detailed Maps of Thousands of Nearby Galaxies

    February 2, 2019, Categories  Astronomy/Space

    The MaNGA data set will eventually include more than 10,000 nearby galaxies, and the survey is already more than half way toward that goal.
    Credit: SDSS/MaNGA collaboration

    The latest data release from the Sloan Digital Sky Survey (SDSS) includes observations revealing the internal structure and composition of nearly 5,000 nearby galaxies observed during the first three years of a program called Mapping Nearby Galaxies at Apache Point Observatory (MaNGA).

    MaNGA uses a technique called resolved spectroscopy to study galaxies in much greater detail than previous surveys. Spectroscopy is a powerful tool for astronomers, yielding a wealth of information by measuring how much light an object emits at different wavelengths...

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