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Online Astronomy & Sky Simulation Tool

Online Astronomy & Sky Simulation Tool

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Stellarium Web—planetarium sky in the browser with constellations, planets and deep-sky objects.

11/21/2025

About This Site

What is it?

stellarium-web.org is the web version of the Stellarium planetarium: a virtual sky with constellations, planets and deep-sky objects you can pan and zoom.

How to play

  • Drag to look around; scroll to zoom
  • Toggle constellation lines / atmosphere from the controls
  • Search bright objects by name when the search box is available
  • Set location for a more accurate local sky; needs WebGL

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