• NASA Extragalactic Database
  
  The NASA/IPAC Extragalactic Database (NED) provides a multi-wavelength fusion of data for millions of objects outside the Milky Way galaxy. The astrophysical objects covered in NED include galaxies, quasars and other active galactic nuclei (AGNs), gravitational lenses, absorption line systems, components of galaxies such as supernovae, HII regions, star clusters and variable star
  agn agns astronomy clusters cosmology galaxies galaxy groups pairs photomet qso qsos quasar quasars redshifts seyfert universe
  By mcswell in Science > Astronomy with astronomy database extragalactic nasa science

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