ESASky open science web app

ESASky is an open science discovery portal providing full access to the entire sky as observed with Space astronomy missions, as of February 2017 INTEGRAL, Suzaku, XMM-Newton, Hubble Space Telescope, Hipparcos, Gaia, ISO, Herschel and Planck. You can visualise and download all public high-quality astrononomical data without having to log-in.

The web application is at sky.esa.int and help pages are here.

With this application citizens are offered simple and modern access to all the science-ready images and source catalogues from ESA Astronomy missions and some other highly relevant datasets for Astronomical research from other data providers. ESASky will always be updated with the latest and highest quality data from ESA Astronomy missions.

Screen Capture of the ESASky open science discovery portal. Credit: ESA, CC BY-SA 3.0 IGO

With ESASky users can visualise any point of the sky at any zoom level from Gamma rays to radio wavelengths, download science-ready images (in FITS format) and source catalogues for those regions, plan for future observations by placing and rotating instrument footprints on the sky, upload a target list and make a video tour through the objects in the list, create permanent links to the application opening at any point in the sky as observed at any frequency and take snapshots of the views to use elsewhere.

Data scientists can also browse and retrieve all the data and catalogues in ESASky using the simple ESASky python interface from the astropy astroquery package.

ESASky is developed at ESAC, ESA’s Space Astronomy Centre in Madrid, Spain, by an ESAC Science Data Centre (ESDC) team around principal Software Engineer Fabrizio Giordano. ESASky uses Aladin Lite, a lightweight sky atlas running in the browser, developed by the Centre de Données astronomiques de Strasbourg (CDS), Strasbourg Observatory, France. Full credits here.

You can contact the ESASky team here.

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