NASA/IPAC Extragalactic Database  

NED will be unavailable due to network upgrades at IPAC:
06:00 — 10:00 Thursday, May 11 US/Pacific (UTC-7)
06:00 — 10:00 Tuesday, June 13 US/Pacific (UTC-7)
These times are subject to change. We apologize for the inconvenience.

Help for Object Queries OBJECTS Help for Data Queries DATA Help for Literature Queries LITERATURE Help for Tools TOOLS Help IndexINFO
By Name Images by
References by
Object Name
Coordinate Transformation &
Extinction Calculator
Introduction
Latest News/Updates
Near Name Photometry & SEDs References by
Author Name
Velocity Calculator Features
FAQ
Near Position Spectra Text Search Cosmology Calculators Brochure (pdf)
Best Practices (pdf)
IAU Format Redshifts Knowledgebase LEVEL5 Extinction-Law Calculators Source Nomenclature
By Parameters
Redshift-Independent
Distances
Galaxy Distance
Tabulations (NED-D)
Galaxy Environment by
Web Links
New Interface
By Classifications
Classifications by
Object Name
Abstracts X/Y offset to RA/DEC Glossary & Lexicon
By Refcode Positions  
Batch Help
Team
Users Committee
Object Notes Diameters   Build Data Table from Input List
Contact Us
or Comment


If your research benefits from the use of NED, we would appreciate the following acknowledgement in your paper:  This research has made use of the NASA/IPAC Extragalactic Database (NED) which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration.
National Aeronautics and Space Administration Jet Propulsion Laboratory California Institute of Technology Infrared Processing & Analysis Center