The Astronomy Center has provided educational resources to introductory astronomy educators since 2003. Over the past 20 years, the rapid pace of discovery has rendered some of our linked resources obsolete. Thus, the Astronomy Center will be decommissioned on March 1, 2022. Our highest quality resources will be retained on ComPADRE.org.
The NASA/IPAC Extragalactic Database (NED) provides basic data and cross-identifications of extragalactic objects along with accurate positions and measured redshifts.
Does not have a copyright, license, or other use restriction.
The NED requests that researchers which benefit from its use include an acknowledgment in any resulting research.
Disclaimer: ComPADRE offers citation styles as a guide only. We cannot offer interpretations about citations as this is an automated procedure. Please refer to the style manuals in the Citation Source Information area for clarifications.