Download page
Download Sky42
A desktop planetarium for Windows and macOS, standalone and offline.
Sky42 1.0 is free for non-commercial use, with no account and no subscription. See the terms for what non-commercial use covers.
- Free for non-commercial use, standalone, and works fully offline once its catalogues are on disk.
- Signed installers for Windows and Apple Silicon macOS.
- Over a billion Gaia DR3 stars to magnitude 20, in tiers you download from inside the app only if you want them.
1.06 billion Gaia DR3 stars
OpenNGC + HYPERLEDA deep sky
MPCORB + CometEls minor bodies
Installers
Signed builds for Windows and macOS
Sky42 doesn't self-update or auto-install: the in-app "Check for Updates" only ever opens this page. Installing a new version is something you choose to do yourself.
Version 1.0.0
ℹ️
Freeware for non-commercial use. See the terms for what that covers; the catalogue data underneath keeps its own, separate licenses.
Release notes
- Sky42 1.0 is the first public release.