Aladin lite is a lightweight version of the Aladin Sky Atlas, running in the browser and geared towards simple visualization of a sky region.
It allows one to visualize image surveys (JPEG multi-resolution HEALPix all-sky surveys) and superimpose tabular (VOTable) and footprints (STC-S) data.
Aladin lite is powered by the HTML5 canvas technology, currently supported by any modern browser
It is dedicated to replace the Aladin Java applet technology in the medium term.
The panel on the right hand is not a regular image. It is actually Aladin Lite running as an embedded widget. You might try to zoom in and out using your mouse wheel, or pan the view to move around.
Aladin Lite comes with a full-featured API allowing one to customize its interface, control the view, change the image survey to display, create catalogues and overlay layers, develop powerful interactions between a web page and Aladin Lite.
The Aladin Lite API is described on a dedicated page.
Developers might also be interested in this tutorial, which shows step by step how to create an interactive sky map with Aladin Lite.
To give you an overview of how Aladin Lite can be used, have a look at the list of examples.
Aladin Lite has been integrated in the main CDS services:
Outside CDS, Aladin Lite is used in several projects:
If your project is using Aladin Lite, we would be happy to have it listed here. Drop us a line!
Aladin Lite source code is available under GPL3 licence (Download Aladin Lite source code).
ipyaladin is a Jupyter notebook widget, developed at CDS, and allowing for easy embedding and control of Aladin Lite from an IPython notebook.
ladislav.heller at gmail.com) has integrated Aladin Lite in an Android application using the Xamarin framework.
The region editor is an Aladin Lite extension allowing users to plot polygons over the current sky view, and retrieve the coordinations of the vertices.
It has been designed to be used as an interface for searches by region or for cutout services.
This development has been funded by the SSC XXM-Newton.
Documentation, installation instructions can be found on this page.
The tour navigator is an Aladin Lite extension that allows to implement easily virtual tours of objects of interest. It has been designed to be used as interface for navigating through the sky from object to object. Allowing users to learn about each object they visit in the tour. The tour navigator plugin has been developed and designed at CEFCA (Centro de Estudios de Física del Cosmos de Aragón) by Tamara Civera. Documentation, source code and installation instructions can be found on this page.
new method allowing direct query to SkyBot
support of HiPS catalog (new format)
fix astrometry offset by subdividing HEALPix cells too distorted
new method A.MOCFromJSON to create a MOC from the JSON serialization
added raField and decField options when creating catalogue
added cubehelix color map
added option in A.catalogFromURL to bypass proxy
access to Simbad and VizieR data (catalogFromVizieR and catalogFromSimbad) are now done directly, without the proxy
new methods getShareURL and getEmbedCode
new methods for easy retrieval of Simbad, NED and VizieR data
new options for Catalog.onClick: 'showTable' or 'showPopup'
added displayLabel option for a catalog overlay
added lineWidth option for A.graphicOverlay objects
New shapes available for catalogue sources
Various bug fixes
New API methods: getSize, getFov, world2pix, pix2world, getFovCorners
New features: progressive catalogues, color maps, fullScreen option at startup, PNG export
New API methods: setFOVRange, listeners on objectClicked, objectHovered
Bug fix: support for Firefox < 4
Added zoom control to the UI
Added method to trigger object selection
First public beta release
Aladin Lite is developed and maintained by Thomas Boch.
Send your feedback, comments, feature requests and bug reports to this email address.