Visualization of the sky in Notebooks: the ipyaladin widget extension
summary
ipyaladin embeds Aladin Lite into Jupyter and actually exchanges complex astronomy objects between JS and Python so users set targets, get astropy coordinates back, and add or download real survey pixels as FITS. The demo overlays Euclid optical, ASKAP radio and Chandra X ray, finds 48 catalogued galaxies and 57 GAIA candidates, saves polygon masks and returns selections for analysis. It uses HEALPix tiles, a Rust/WebAssembly renderer, and the anywidget wrapper around ipywidgets to produce ipyaladin and to download scientific FITS.
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chapters (19)
- 0:00CDS team and tools
- 1:20Aladin visualization history
- 9:28Python API and iPyAladin
- 9:55Live demo: iPyAladin setup
- 10:20Coordinates and Perseus cluster
- 11:33Field of view and catalog data
- 12:49SIMBAD for galaxy info
- 13:36Astroquery for galaxies
- 15:09Multi-wavelength survey overlay
- 16:16Euclid telescope data
- 17:52Scientific pixels download and plot
- 19:11Radio data with ASKAP
- 20:39Local FITS files work
- 21:03Gaia galactic candidates
- 23:34X-ray data segmentation
- 25:48Region masking
- 26:12Technical stack and deps
- 27:44iPyAladin use cases
- 28:11Q&A
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