What's New with NED

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(Latest Revision: 16 October 2015)

Welcome to the NASA/IPAC Extragalactic Database (NED)

August-October 2015 Release Highlights

Database Contents

Tabular and graphical summaries of NED's current holdings are presented here.

References and Object Pointers

  • 1,767 new references
  • 33,402 new object links (pointers) to references


  • 5,176 photometric data points for 1,781 objects, from 43 references
  • Radio : 22 cm fluxes from The Radio Continuum-Star Formation Rate Relation in WSRT SINGS Galaxies (Heesen, V. et al., 2014AJ....147..103H)
  • Visual: UH88 and Subaru magnitudes from Discovery of Four Doubly Imaged Quasar Lenses from the Sloan Digital Sky Survey (Inada, N. et al., 2014AJ....147..153I)
  • Near-IR : WISE and Spitzer fluxes from Extending the Nearby Galaxy Heritage with WISE: First Results from the WISE Enhanced Resolution Galaxy Atlas (Jarrett, T. H. et al., 2013AJ....145....6J)
  • X-ray : XMM fluxes from XMM-Newton Observations of Luminous Sources in Nearby Galaxies NGC 4395, NGC 4736, and NGC 4258 (Akyuz, A. et al., 2013AJ....145...67A)

Redshift-Independent Distances


  • 768 images from Quantified H I morphology - II. Lopsidedness and interaction in WHISP column density maps (Holwerda, B. W. et al. 2011MNRAS.416.2415H)


  • 21 spectra from Studies of galaxies in voids. I. H I observations of Blue Compact Galaxies (Pustilnik, S. A. et al. 2002A&A...389..405P)
  • 272 spectra from The Hamburg Quasar Survey. III. Further new bright quasars (Hagen, H. -J. et al. 1999A&AS..134..483H)
  • 98 spectra from The Hamburg Quasar Survey. II. A first list of 121 quasars (Engels, D. et al. 1998A&AS..128..507E)
  • 16 spectra from The NGC 4005 group - A rotating system of galaxies? (Williams, B. A. 1986ApJ...311...25W)

Review Articles in LEVEL 5 Knowledgebase for Extragalactic Astronomy and Cosmology

New User Interface and New Approach for Data Integration

New User Interface

The NED user interface has begun a transition to a new, more modern style. This new interface may be previewed here. Drop down menus may be used to quickly access searches for objects, data, or literature. Clicking one of these options will lead to the classic, familiar search forms for services that have not yet adopted the new style. Searches By (or Near) Object Name, Near Position, and by RefCode (Reference Code) may be typed directly into a prominently featured smart box. The following search forms are available in the new style:

New Approach for Data Integration

NED has implemented a new methodology for integrating data from both very large catalogs (VLCs) containing hundreds of millions of sources, and smaller datasets from the literature. There is a new user interface to Search Objects and Unprocessed Catalog Sources, with an option to include incoming catalog sources that have not yet been cross-identified and had their key parameters fused with other information in NED.

The current release provides access to 471 million catalog sources from the 2MASS Point Source Catalog (2MASS PSC), 42 million catalog sources from the Spitzer Source List (SSTSL2), and 1.6 million catalog sources from the WIde-field nearby Galaxy-cluster survey (WINGS). Over 62 million catalog sources from the GALEX All Sky Survey Catalog (GASC) and the GALEX Medium Imaging Survey Catalog (GMSC) have already been cross-identified with NED objects or promoted to new NED objects.

In the past, cross-identifications between incoming catalog sources and objects in NED were integrated incrementally over many months as the results from cross-matching software were vetted and loaded into the database in chunks spanning across multiple NED updates. This had the disadvantage that only a fraction of catalog sources were accessible in NED until the catalogs were fully processed, and it was not clear exactly what subsets were in NED at any given time. In the new approach, selected parameters (columns) for all catalog sources (rows) are rapidly loaded into a new Catalog Source Representation layer of the database and made available for optional inclusion in search results along with the fully integrated NED objects. A detailed discussion of the ontology of unprocessed catalog sources (Status=S) versus NED objects (Status=O) may be found here.

The Introduction to NED has more details about all of NED's services, and NED's Features gives a brief overview of NED.

The NED History page has previous NED news.

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