This is where Aladin really comes into its own. However, for astronomers who spend their nights acquiring beautiful deep-sky images Aladin enables these to be combined with scientific data acquired by the large ground based and space observatories. SIMBAD data for the Crab Nebula progenitor pulsar (click to enlarge)Īladin gives unprecedented access to contextualised multi-wavelength data and is a valuable tool for any amateur astronomer looking to understand more about the universe. With Aladin you can select individual data points and drill down into the data itself to view data such as distances, spectra, proper motions, etc. Crab Nebula visualised using Aladin and showing reference points and proper motions (click to enlarge) In just a few clicks you can access and download related datasets and information from many sources including the SIMBAD database, the VizieR service and many other astronomy data archives. Visualising multi-wavelength data by superimposing entries from astronomical catalogues or databases.Visualising digitized astronomical images.With Aladin you can perform tasks such as: It is available to download as Java program which can be run as stand-alone software on the PC, or as a java applet which will run in your Internet browser. Aladin was developed and maintained by the Centre de Données Astronomiques de Strasbourg (CDS) and is one of several tools that comprise the European Virtual Observatory (VO) toolset. The Aladin Sky Atlasis perhaps the most exciting and useful tool for the amateur astronomer. In the mean time, there are a number of references and links at the end of this article should you want to find out more. If there is sufficient interest amongst members then perhaps a presentation on this subject can be arranged for a future meeting. The following article presents a brief overview of three of the more interesting tools. I was able to use these with very good effect to complete my assignment. Whilst gathering the information I needed, I came across some powerful yet easy to use Virtual Observatory software tools for the retrieval and analysis astronomy images and data. One of the course assignments required students to research the characteristics of a given peculiar galaxy using astronomical databases and other information sources available on the Internet. I have recently completed an Advanced University Certificate in ‘Astrophysics of Galaxies’, a challenging two-year distance learning course run by the University of Central Lancaster. ) Zoom Pan Rotate Overlays Multi-views Many projections (Sin, Tan, Aitoff, Mollweide, etc) Any coordinate systems (FK4, FK5, ICRS, GAL, SGAL, ECL) No image size limit Million source overlays, Most of astronomical formats (images: HiPS, FITS, PDS, HEALPix map, JPEG, PNG cubes (HiPS, FITS) tables: HiPS, FITS, VOTable, S-extractor, IPAC TBL, ASCII, etc regions: XML, STC, DS9, IDL) Powerful tool boxes (images: color map, contours, crop, re-encode, color composition, pixel computation, resampling, astrometrical calibration, mosaic, photometric measurements, etc Catalogs: filter, split, merge, x-match, scatter plot, etc) VO standards: JSAMP, TAP, CS, SSA, SIA, etc Extendable: plugins, VOApp interface Fully scriptable Multi-language (see screen dumps.Print This Post Astrometry Tools and the Aladin Sky Atlas by Peter Campbell-Burns Featured Articles - By Peter Campbell-Burns on Januat 5:39 pm Main features: 20 000+ data collections (DSS, SDSS, PanSTARRS, Skymapper, Gaia, Simbad, NED, VizieR. 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. Other archives for all known astronomical objects in the field.Ĭreated in 1999 by the CDS, Aladin Desktop 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. Or databases, and interactively access related data and Or full surveys, superimpose entries from astronomical catalogues To visualize and manipulate digitized astronomical images Aladin Desktop is the main application of theĪladin Sky Atlas suite.
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