NASA/IPAC Extragalactic Database
Appearance
The NASA Extragalactic Database (NED) is a database funded by NASA that collates astronomical information about objects outside the Milky Way. Formally the NASA/IPAC Extragalactic Database, it is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with NASA.
As of 22 April 2005, it indexes 7.8 million astronomical objects with 12.0 million cross-identifications in multiple wavelengths, redshift measurements for 827,000 objects, 21.5 million photometric measurements, 3.6 million diameter measurements and 2.0 million images, maps and external links, together within links to journal articles, notes and abstracts.
See also
- SIMBAD - a database of information on Galactic objects, maintained by the Centre de Données astronomiques de Strasbourg, France
- NASA's Planetary Data System (PDS) - a database of information on solar system objects, also maintained by JPL