Aladin Sky Atlas

New: Aladin version 8 - March 2014 - The new release of Aladin (more) ...
(en français)
Aladin is an interactive software sky atlas allowing the user to visualize digitized astronomical images, superimpose entries from astronomical catalogues or databases, and interactively access related data and information from the Simbad database, the VizieR service and other archives for all known sources in the field (see available data).
Created in 1999, Aladin has become a widely-used VO tool capable of addressing challenges such as locating data of interest, accessing and exploring distributed datasets, visualizing multi-wavelength data. Compliance with existing or emerging VO standards, interconnection with other visualisation or analysis tools, ability to easily compare heterogeneous data are key topics allowing Aladin to be a powerful data exploration and integration tool as well as a science enabler.
The Aladin sky atlas is available in four modes: a Java Standalone application, a Java applet, a Aladin Lite javascript and a simple previewer.

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(Fr, US, Jp, In, UK, Ca)*
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Aladin Lite
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Documentation The Aladin FAQ
The Aladin user manual (En - Fr - It - corresponds to version 6)
Available Hierarchical Progressive Surveys (HiPS doc)
Provide my data in Aladin (help form)
The Aladin science case tutorial
The Aladin filter manual
The script reference manual
Launch Aladin
Demonstration What's new? - a Flash video (40MB)
Become a beta tester - exercices for discovering/testing Aladin
Object gallery - 2 million Simbad object thumbnails created by Aladin in batch mode
Amateur's corner- movie for starting (48MB)
Mailing list Subscribe: just send this e-mail to
Archive access
Plugins Aladin can be extended by your own java plugins.
See the Aladin plugin repository.
Copyright UDS/CNRS - distributed under GPL v3 licence
- Portions of the code (outreach developements) have been developed in the framework of the EuroVO AIDA project (2008-2010).
- Portions of the code (FoV advanced integration, Fits cubes, Xmatcher by ellipses, Plastic integration) have been developed in the framework of the EuroVO VOTech project (2005-2008).
- Portions of the code (contours, filters, metadataTree) have been developed in the framework of the Astrophysical Virtual Observatory (AVO), an EC RTD project 2002-2004
- The RGB feature has been developed in the framework of the IDHA project (ACI GRID of the French Ministere de la Recherche).
Acknowledgment If the Aladin sky atlas was helpful for your research work, the following citation would be appreciated: 2000A&AS..143...33B.
(*) The Aladin Java applet can be started from the CDS (Strasbourg - France), from the CFA (Harvard - USA), from the ADAC (Tokyo - Japan), from the IUCAA (Pune - India), from the UKADC (Cambridge - UK), or from the CADC (Victoria - Canada).