A free open source desktop planetarium for your computer

Stellarium

Stellarium

  -  361.48 MB  -  Open Source
  • Latest Version

    Stellarium 25.2 (64-bit) LATEST

  • Review by

    Marian Marinescu

  • Operating System

    Windows 10 (64-bit) / Windows 11

  • User Rating

    Click to vote
  • Author / Product

    Fabien Chereau / External Link

  • Filename

    stellarium-25.2-qt6-win64.exe

  • MD5 Checksum

    c0ff36b4c336fd3020ddd9a67c454dde

Stellarium is a free, open-source planetarium software for Windows designed for astronomy enthusiasts, educators, and anyone interested in exploring the night sky.

Stellarium Screenshot 1

It provides a highly detailed and realistic simulation of stars, planets, nebulae, and other celestial objects, allowing users to view the sky as it would appear from any location on Earth.

With a vast catalog of over 600,000 stars and deep-space objects, Stellarium for PC is widely used in educational settings and by amateur astronomers for planning observations.

Key Features

Realistic Night Sky Simulation – Displays stars, planets, moons, constellations, and deep-sky objects with high accuracy.

Extensive Object Database – Over 600,000 cataloged stars and nebulae, with additional databases for more celestial objects.

Telescope Control – Connects to telescopes via third-party plugins for automated tracking.

Time Travel Feature – Simulates sky conditions at any past or future date.

Constellations and Mythology – Displays constellation lines, names, and mythological figures from different cultures.

Customizable Views – Allows users to adjust sky elements, landscapes, and atmospheric conditions.

Educational Tools – Includes labels, grids, and overlays for learning and teaching astronomy.

Scripting Support – Enables automation and custom simulations using scripts.

Stellarium Screenshot 2

Installation and Setup
  • Download this program from the official website or FileHorse.
  • Run the installer and follow the on-screen instructions.
  • Choose installation options, including the default directory and additional plugins if needed.
  • Launch the application and configure your viewing location using GPS coordinates or selecting a city.
  • Adjust settings such as sky brightness, labels, and object visibility according to preference.
How to Use

Set Location – Use the location window to specify your observing position.

Explore the Sky – Click and drag to move around the sky, zoom in with the mouse wheel.

Search for Objects – Use the search tool to find stars, planets, or constellations.

Stellarium Screenshot 3

Time Control – Adjust the date and time slider to simulate past or future celestial events.

Enable Telescope Mode – If using a telescope, configure and connect it for guided tracking.

Use Shortcuts – Learn keyboard shortcuts to toggle grids, labels, and other features quickly.

FAQs

Is Stellarium free to use?
Yes, this program is completely FREE and open-source. However, premium versions with additional features are available for mobile devices.

Can Stellarium control my telescope?
Yes, with the appropriate plugin, it can connect to and control various telescope models.

Does Stellarium work offline?
Yes, it works entirely offline once installed, but online features like database updates require an internet connection.

Can I use Stellarium for astrophotography planning?
Yes, this app is widely used for planning astrophotography sessions by simulating star positions and visibility.

Is Stellarium available for macOS and Linux?
Yes, the software is cross-platform and available for Windows, macOS, and Linux.

System Requirements
  • OS: Windows 7, 8, 10, 11 (64-bit)
  • Processor: 2 GHz dual-core or higher
  • RAM: 2 GB (4 GB recommended)
  • Graphics: OpenGL 3.3 compatible GPU
  • Storage: 1 GB of available space
PROS
  • Free and open-source
  • Realistic sky simulation with a vast celestial database
  • Telescope control capability
  • Educational and customizable
  • Works offline after installation
CONS
  • Requires a decent GPU for smooth rendering
  • Some advanced features need plugins
Conclusion

Stellarium is an outstanding planetarium software for anyone interested in astronomy, from casual stargazers to serious amateur astronomers. Its detailed sky simulation, telescope control support, and educational features make it a valuable tool for planning observations and learning about celestial objects.

Also Available: Stellarium for Mac

Why is this app published on FileHorse? (More info)
  • Stellarium 25.2 (64-bit) Screenshots

    The images below have been resized. Click on them to view the screenshots in full size.

    Stellarium 25.2 (64-bit) Screenshot 1
  • Stellarium 25.2 (64-bit) Screenshot 2
  • Stellarium 25.2 (64-bit) Screenshot 3
  • Stellarium 25.2 (64-bit) Screenshot 4

What's new in this version:

Added:
- ASE URL into OnlineQueries plugin
- ability to use constellations and asterism as searched-for object in OnlineQueries plugin
- ability showing a elongation dependent cultural names (moring/evening visibility)
- support zodiac and lunar systems
- code to process abbreviations of constellations and asterisms
- Custom Nebula Textures Plug-in
- context for dropdown list in Custom Nebula Textures plugin
- fields for translating planet names
- ability to finetuning use of asterisms by user-defined exclusions
- ability to offset for constellation and Asterism label placement
- ability mix of cultural and common star names
- ability to excluding star names from unwanted references
- context and tooltips for new menu items
- support for Dark Constellations
- new GUI elements (sky cultures)
- adjustments for MinGW compilation
- an option to keep image placement on loading a new image in Lens Dist. Est. plugin
- a few more telescopes to Camera Mosaic Plugins
- Restore Defaults button in Mosaic Camera plugin
- parallax data in WUI
- Mosaic Camera plugin
- installing libtbb12 package inside of AppImage
- skyculture “Ruanui sky: Tahiti and Society islands”
- support of new properties in RemoteControl plugin

Fixed:
- saving options for zodiac & lunar mansions
- context data support for zodiac and lunar systems
- font metrics in ArchaeoLines plugin
- wrong output size
- registry records for Windows installer
- comet discovery data
- a few spelling errors in Mongolian SC
- data: Harmonize a few constellation/asterism lines
- description of sky cultures
- labeling native/pronounce
- extra IPA handling
- showing duplicate names in native and translation
- screen updates when setting changes
- discovery date/name
- changes in SolarSystemEditor plugin
- searching
- DSO name rendering
- Qt5.15 building
- missing space in front of translated “Added”
- typos in src/core
- typos in skycultures/
- typos in plugins/
- typos in guide/
- crash: Restore OpenGL context after initialising StelAudioMgr
- issues found by PVS-Studio
- configuration when innosetup isn’t installed
- packing sky cultures
- categories in Linux/UNIX menu (desktop file)
- adding new locations
- issue for custom time zone in Location dialog
- numbers in DSO textures file
- compiling with Qt 5
- building on Windows
- a warning message
- missing negation of a condition (HiPS)
- problems with IP-based location lookup
- minor issues in Mosaic Camera plug-in
- one-off assertion bug
- astrometry tests
- compiling in macOS when md4c is locally installed package
- linking macOS package when md4c is locally installed package
- compilation with Qt 6.9
- modern asterism TA8
- typo in Khoi-San SC
- links in documentation
- calculation the duration of astronomical night
- localization support in new plugin
- cmake for Satellites plugin
- z fighting of HiPS levels
- designation for comet P/2024 L4
- two names for Venus

Changed:
- Changed core: Haiku OS hasn’t hardware acceleration and we shouldn’t use High Graphics Mode here
- Changed core: Replace native enum string format by comma-separated list format
- Changed core: Different brackets for pronunciation/transliteration group
- Changed core: Avoid capitalized search result
- Changed core: Move HiPS tile texture binding to a separate method
- Changed core: Don’t accept non-planetary surveys in SolarSystem::onNewSurvey
- Changed core: Check if a survey is planetary immediately by hipslist
- Changed core: Merge HiPS properties from hipslist and properties
- Changed core: Let HiPS have TIFF and BMP tiles
- Changed core: simplifications
- Changed core: Speedup renderMarkerPointedCircle
- Changed core: Add manually-resolved glDrawBuffer and glReadBuffer to Planet::initFBO
- Changed core: Don’t create empty HiPS properties
- Changed core: Implement a more robust HiPS list parser
- Changed core: Survive loading bad line for asterisms
- Changed core: Use QtPositioning for location lookup
- Changed core: Let’s use Low Graphics Mode on NetBSD/OpenBSD/Solaris and Haiku
- Changed GUI and core: increase WOW-effect for demonstrations of parallax
- Changed GUI: The feature of automatic closing of the search dialog is configurable now
- Changed GUI: Cosmetic fixes for Help dialog
- Changed logger: Improve determination version of the Haiku OS
- Changed logger: improve message for skipping asterisms
- Changed HiPS support: Log more information about loading Allsky
- Changed HiPS support: Mark Allsky as not available on failure to decode
- Changed HiPS support: Update HipsSurvey’s progress bar when Allsky download ends
- Changed ISS scripts: Splitted ISS files into InnoSetup 6 compatible and InnoSetup 5 compatible
- Changed SC data in Babylonian (Mulapin) sky culture
- Changed SC data in Greek (Almagest) sky culture
- Changed SC data in Korean sky culture
- Changed SC data in all Modern sky cultures
- Changed SC data: Splitting data in “english” field into “english” and “pronounce” fields in new Chinese SC
- Changed SC data: Renaming “Chinese Medieval” sky culture to “Chinese Song Dynasty Sky” sky culture
- Changed SC data: Remove po directory from recently imported Chenzhuo SC

Updated:
- GCVS catalog
- planetary nomenclature data
- ShowMySky atmosphere shaders
- scripts: Protect users from scripts overwriting settings
- .clang-format to conform to the Coding Style
- scripts according to latest changes
- planetary nomenclature data
- translations
- metainfo
- dependencies: INDI v2.1.3
- dependencies: NLopt v2.9.0
- dependencies: CalcMySky v0.3.5
- lists of contributors
- data of comets

Removed:
- duplicates supernovae
- extracted comments that repeat auto-generated ones in few sky cultures
- malformed whitespaces
- outdated flag