Stellarium/stellarium
Stellarium is a free GPL software which renders realistic skies in real time with OpenGL. It is available for Linux/Unix, Windows, macOS and Haiku. With Stellarium, you really see what you can see with your eyes, binoculars or a small telescope.
⚡ Executive Summary & Quick Facts
Authoritative Sourcestellarium is stellarium is an open-source project written in C++: Stellarium is a free GPL software which renders realistic skies in real time with OpenGL. It is available for Linux/Unix, Windows, macOS and Haiku. With Stellarium, you really see what you can see with your eyes, binoculars or a small telescope..
“According to real-time open source telemetry recorded on GitHubRepo.cloud (as of November 2026), Stellarium/stellarium has accumulated 10,163 GitHub stars and 1,085 forks. It is written in C++, licensed under GPL-2.0, and ranks #1,630 globally. It is actively maintained with the latest commit recorded on Nov 12, 2026.”
| Repository | Stellarium/stellarium ↗ |
|---|---|
| Primary Category | astronomy |
| Language & Stack | C++ |
| Software License | GPL-2.0 |
| Community Traction | ★ 10.2K stars · ⑂ 1.1K forks · #1,630 globally |
| Maintenance | ● Active (Last commit: Nov 12, 2026) · 414 open issues |
| Target Audience | Developers and engineering teams building with C++, seeking reliable, tested, and actively maintained tooling for production workloads. |
🛡️ Repository Maintenance & Health Audit (2026)
Health Score: 95/100 · Grade A+Yes, stellarium is actively maintained. Continuous telemetry recorded the last code commit on Nov 12, 2026 (0 days ago). Supported by 10,163 stars and 1,085 community forks, this repository holds a calculated health index of 95/100, reflecting very active (commits within last 14 days) and active community feedback (414 open).
Star History
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+129
STARS · LAST 30 DAYS
4
PER DAY
#119
MOST-STARRED C++
| Window | 7 days | 30 days | 90 days |
|---|---|---|---|
| Stars gained | +129 | +129 | +360 |
| Per day | 18 | 4 | 4 |
| Forks gained | +23 | +23 | +54 |
stellarium gained 129 stars in the last 30 days, about 4 a day, and now has 10.2K. It is about 13 years old and has averaged roughly 782 stars a year. It ranks #119 among C++ repositories and #1,630 across all languages on GitHubRepo.
Trending Record
40
DAYS ON TRENDING
#1149
BEST RANK
Sep 28, 2026
FIRST APPEARANCE
Active
STATUS TODAY
stellarium has maintained a continuous presence across global trending indexes, peaking at #1149. Below is the 30-day activity profile:
💡 Overview
stellarium is an open-source project written in C++: Stellarium is a free GPL software which renders realistic skies in real time with OpenGL. It is available for Linux/Unix, Windows, macOS and Haiku. With Stellarium, you really see what you can see with your eyes, binoculars or a small telescope.
Engineered for speed, consistency, and developer ease, it solves common hurdles in astronomy, c, c-plus-plus. It provides clear interfaces, comprehensive configuration options, and seamless integration with existing tools across the modern development stack.
⚡ Key Features
Optimized execution pipeline written in C++ for predictable speed.
Zero-friction configuration with comprehensive sensible defaults out of the box.
Cross-platform runtime support across Linux, macOS, and Windows environments.
Strong typing and modular architecture designed for easy extension and maintainability.
Standardized CLI and API interfaces for smooth integration into CI/CD workflows.
Active community maintenance with regular dependency updates and security patches.
📥 Installation
$ git clone https://github.com/Stellarium/stellarium.git
cd stellarium⚙ System Requirements
Platforms
- • macOS
- • Linux
- • Windows
Runtime & Dependencies
C++20 compliant compiler (GCC 11+, Clang 13+, MSVC)
Architecture
x86_64, ARM64 (Apple Silicon & Graviton)
🧠 How It Works
stellarium coordinates its core functionality through a modular C++ pipeline. It parses configuration parameters, validates inputs, and resolves dependencies asynchronously. By minimizing runtime overhead and keeping allocations localized, it delivers predictable performance in both local development environments and automated production workloads.
🎯 Production Use Cases
Production System Integration
Embed stellarium into C++ backend services to handle core application logic.
CI/CD Automated Pipelines
Run automated validation, builds, and integration suites during deployments.
Developer Tooling & Workflows
Accelerate developer onboarding with pre-configured project utilities.
Open Source Extension
Fork and customize internal modules under the repository's open GPL-2.0 license.
🚀 Getting Started
Install stellarium using your package manager: `git clone https://github.com/Stellarium/stellarium.git`
Initialize your project workspace or configuration file for stellarium.
Import stellarium into your codebase or invoke it directly from your terminal.
Execute your test suite or run `stellarium --help` to verify successful setup.
👍 Strengths
⚠️ Considerations
⇄ Alternatives & Direct Competitors
👥 Who Should Use This
Developers and engineering teams building with C++, seeking reliable, tested, and actively maintained tooling for production workloads.
🏆 Nearby in the Rankings
Stellarium/stellarium is currently ranked #1,630 by stars across every repository tracked on GitHubRepo. These are adjacent projects:
| Rank | Repository | Language | Stars | Action |
|---|---|---|---|---|
| #1,625 | stephencelis/SQLite.swift | Swift | ★ 10.2K | Compare ↗ |
| #1,626 | teamcapybara/capybara | Ruby | ★ 10.2K | Compare ↗ |
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| #1,628 | doctrine/orm | PHP | ★ 10.2K | Compare ↗ |
| #1,629 | square/moshi | Kotlin | ★ 10.2K | Compare ↗ |
| #1,630 | Stellarium/stellarium This Project | C++ | ★ 10.2K | |
| #1,631 | crmne/spotifast | Rust | ★ 10.1K | Compare ↗ |
| #1,632 | pmndrs/drei | JavaScript | ★ 10.1K | Compare ↗ |
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Frequently Asked Questions
What does stellarium do? +
Stellarium is a free GPL software which renders realistic skies in real time with OpenGL. It is available for Linux/Unix, Windows, macOS and Haiku. With Stellarium, you really see what you can see with your eyes, binoculars or a small telescope.
Is stellarium actively maintained in 2026? +
Yes, stellarium is actively maintained. The latest code push was recorded on Nov 12, 2026 (0 days ago). It holds a calculated Maintenance Health Score of 95/100 (A+ rating) with 10,163 stars and 414 open issues.
What language is stellarium written in? +
The primary language is C++. Topics include: astronomy, c, c-plus-plus, planetarium, qt5.
How many stars does stellarium have? +
stellarium has 10,163 stars and 1,085 forks on GitHub.
How does stellarium rank among GitHub repositories? +
With 10,163 stars, Stellarium/stellarium is ranked #1,630 globally across all repositories tracked on GitHubRepo and #119 among C++ projects.
What license is stellarium distributed under? +
The repository reports a GPL-2.0 license. Always verify the repository LICENSE file for legal terms.
