NASA/IPAC Extragalactic Database

The NASA Extragalactic Database (NED ) is an astronomical database for galaxies and other objects outside our Milky Way. NED is operated by the Infrared Processing and Analysis Center, IPAC the Jet Propulsion Laboratory at the California Institute of Technology, funded by NASA.

NED contains a list of (November 2011) 167 500 000 objects for which designations from different catalogs precise positions in the sky and redshifts are identified with one another and to the extent possible, be stated. NED contains additional for example, photometric data and images in the optical and near-infrared, references to publications that refer to an object, and their summaries.

While NED contains only extragalactic objects, the focus of the SIMBAD database is on stars and other objects of the Milky Way.

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