Stellarium

Stellarium 26.3

A free open source planetarium for your computer.

  • By Stellarium team
  • Open Source
  • Updated Sep 28, 2026
Download for Windows

About Stellarium

Stellarium 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.

What's new in 26.3

What's Changed
Full list of changes:
- Added new plugin 'Object visibility' (GH: #4933)
- Added distance to label of geo targets in ArchaeoLines plugin (GH: #4903)
- Added support for Alpha-5 TLE format in Satellites plugin (GH: #5054)
- Added Scenery3D endpoints to openAPI specification in Remote Control plugin (GH: #5108)
- Added new polygons and adjust period across all skycultures (GH: #5062)
- Added slant and ground distance to aircraft info panel (GH: #5110)
- Added tool to follow the location changes and return to back in AstroCalc/Eclipses tools (GH: #5096)
- Added small speedup for filling the data in AstroCalc/WUT tool
- Added sky culture loader to SCM (GH: #5019)
- Added Potawatomi sky culture (GH: #4869)
- Added dome mode for core.moveToSelectedObject() method
- Added dome mode for core.moveToObject() method
- Added ability to jump to specific circumstances for transit of planets in AstroCalc/Eclipses tool
- Added ability to jump to specific circumstances for local eclipses in AstroCalc/Eclipses tool (GH: #5099)
- Added NASA / Espenak terms for eclipse timings into AstroCalc/Eclipses tool (GH: #5093)
- Added OpenAPI (SwaggerUI) into Remote Control plugin (GH: #5086)
- Added context for Hydra (GH: #5089)
- Added 2 bright novae
- Added option to reposition toolbars in other corners (GH: #5022)
- Added context for few UI elements
- Added new tab "Twilight map" to Object Visibility plugin (GH: #5047)
- Added Nova Tauri 2026
- Added SN 2026sqf
- Added ability to hiding the marker of CCD center in Oculars plugin (GH: #5072)
- Added OHOS platform detection module (GH: #5065)
- Added ability to finding the selected SSO in list of celestial bodies in AstroCalc/Ephemeris tool (GH: #5060)
- Added new tab 'Twilight limits' to Object Visibility plugin (GH :#5041)
- Added Tibetan spelling, transliteration and IPA for Tibetan sky culture (GH: #5036)
- Added TCP transport for LX200 protocol in Telescope Control plugin (GH: #5030)
- Added ability compiling via pkgsrc on Darwin platform without patches
- Added sky HiPS display controls (GH: #5021)
- Fixed axial rotation of Phoboes and Deimos 3D models (GH: #5112)
- Fixed support for Alpha-5 TLE format in Satellites plugin in case where these data already in our JSON catalog
- Fixed openAPI documentation in Remote Control plugin
- Fixed documentation of Calendars plugin (GH: #4975)
- Fixed SC time slider in ViewDialog can be more than currentYear (GH: #5111)
- Fixed labels in Romanian sky culture (GH: #5010) …

Full release notes »

Technical details

PublisherStellarium team
Version26.3
Release date2026-09-28
LicenseGPL-2.0
Installer typeinno
Architecturex64, arm64
Package IDStellarium.Stellarium

Links & install command

Install Stellarium from the command line with Windows Package Manager (winget):

winget install --id=Stellarium.Stellarium -e

astronomyplanetariumstar

Older versions

  • 26.2
  • 26.1
  • 25.4
  • 25.3
  • 25.2.0
  • 25.1.0
  • 24.4
  • 24.3
  • 24.2