You are here

Stellarium Portable

your portable stargazing observatory

Stellarium Portable is a free open source planetarium for your computer that shows a realistic sky in 3D, just like what you see with the naked eye, binoculars or a telescope.

Make a Donation - Support's development and hosting

Make a Donation - Support Stellarium directly

Stellarium Portable works best with the Platform

Legacy Mode: Older PCs and PCs with lower-end graphics chipsets may need to set Stellarium to run in software rendering mode. This can be accomplished by copying the AppNamePortable.ini file from the StellariumPortable\Other\Source directory to the StellariumPortable directory, renaming it to StellariumPortable.ini and then editing the file so that the first line reads AdditionalParameters=--angle-mode and then saving.


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.

Learn more about Stellarium...


osi_certified.pngFor help getting this app up and running, please read the following:

Download Details