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Stellarium Portable

your portable stargazing observatory

Stellarium Portable is the popular Stellarium astronomy program packaged with a Launcher as a portable app, so you can take your astronomical viewing settings with you. It has all the same great features as Stellarium including constellation drawing, star names, planet viewing, nebulae watching, and more. Plus, it leaves no personal information behind on the machine you run it on, so you can take your favorite astronomy program with you wherever you go.

Download Stellarium Portable

Version 0.13.3 for Windows, Multilingual
125MB download / 195MB installed (Details)

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Stellarium Portable works best with the Platform

Legacy Plugin: A legacy plugin is available to allow Stellarium to work on older machines and some Windows XP machines using a software renderer. This plugin will cause Stellarium to run more slowly on modern hardware. Download the Stellarium Legacy Rendering plugin.


ScreenshotStellarium Portable is a free, open source planetarium for your computer. It shows a realistic sky in 3D, just like what you see with the naked eye, binoculars, or a telescope. You can view the planets and gaze at the stars in stunning detail. Stellarium includes vivid illustrations of the constellations and a theatrical display of ravishing nebulae and galaxies. With Stellarium Portable, you can transform any computer into a stargazing centerpiece.

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