![]() Aladin The interactive sky atlas Aladin allows to. This way you can associate the Panstarrs r-band survey to Red, the Panstarrs g-band to Green, the Panstarrs z-band to Blue, etc. catalogues, being the most complete library of published astronomical data tables available online. Panstarrs in the text input at the bottom of the colors. ![]() * Blending of multiple surveys: Type the name of a HiPS e.g. Here you can test it: ( enable WebGL2 experimental feature for Safari users) The "Manage Layers" panel allows you to change the projection and add an equatorial grid. The work is quite well advanced and we hope the next release featuring the new Rust graphical engine will be during this year.įor more info please also take a look at my talk at the ADASS 2020 conference held virtually in Grenada last november: In particular the branch develop features the Rust/WebGL2 code: This lead to the add of new features (multiple projections support, blending of multiple surveys, heatmap catalogs rendering, equatorial grid) that would have been too difficult to implement using 2d canvas.Īladin Lite is GPL licensed, do not hesitate to take a look at the repo, make issues, contribute, etc. The first version of Aladin Lite was released in 2013 and was implemented using js canvas2d.Īs of today, it is used by a quite large community of people passionated about astronomy (scientists as well as amateurs) such as the ESA sky project which uses Aladin Lite for its rendering engine.Īs part of my job and because I like programming computer graphics things, I decided to rewrite the core engine to not rely with canvas2d anymore but to use the GPU instead for performance purposes. ![]() We are hosting ~500 HiPSes each describing all/partial sky surveys, optical/infrared/uv/gamma ray/. Aladin Lite & Aladin desktop can read this specific format. from a set of thousands of images coming from a mission we use the HEALPix sphere tesselation to build tiles in the "the more you zoom the more you see details" way. We create what we call HiPS (Hierarchical image Progressive Survey), i.e. Aladin Lite with Panstarrs r-band survey, an equatorial grid and the APOGEE catalog rendered on it ![]()
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