Stellarium

Spec sheet

Purpose

Stellarium is a free, open source planetarium for computers that shows a realistic sky in 3D.Read 8 Oct 2026 · stellarium.org

Security

The opened official pages do not state security certifications or compliance claims.Read 8 Oct 2026 · stellarium.org

Support

The project directs users to discussions, a mailing list, a wiki, an FAQ, and GitHub for support, bug reports, and feature requests.Read 8 Oct 2026 · stellarium.org

Maker

The site names a project coordinator and developer team but does not state a company name, headquarters, or founding year.Read 8 Oct 2026 · stellarium.org

Customisation

Users can add plugins, solar system objects from online resources, deep-sky objects, landscapes, constellation images, and scripts.Read 8 Oct 2026 · stellarium.org

Deep-sky objects

The default catalogue includes over 80,000 deep-sky objects, with an extra catalogue containing more than 1 million.Read 8 Oct 2026 · stellarium.org

Desktop platforms

The site provides downloads for Linux, macOS, and Windows, including Windows ARM64.Read 8 Oct 2026 · stellarium.org

Latest release

The official site links to version 26.3 as the latest version; its release notes list it as released on September 28, 2026.Read 8 Oct 2026 · github.com

Sky cultures

It includes constellations for more than 40 cultures and calendars for more than 35 cultures.Read 8 Oct 2026 · stellarium.org

Sky simulation

Features include realistic atmosphere, sunrise and sunset, planets and satellites, and eclipse simulation.Read 8 Oct 2026 · stellarium.org

Star catalogues

The default catalogue contains over 600,000 stars, with extra catalogues containing more than 220 million stars.Read 8 Oct 2026 · stellarium.org

System requirements

Minimum requirements include a 64-bit OS, 1 GiB RAM, 1 GiB disk space, and compatible 3D graphics.Read 8 Oct 2026 · stellarium.org

Telescope and remote control

The interface includes telescope control and an HTTP interface for web-based control and remote control API access.Read 8 Oct 2026 · stellarium.org

Web version

The official site links to Stellarium Web, an online star map.Read 8 Oct 2026 · stellarium.org

Plans and prices

Every Stellarium plan and price →

Where Specifiction places it

• Astronomy Apps#22 of 357.5