Stellarium AI Visibility Score: 82/100
AI Visibility Score
Stellarium has an AI visibility score of 82/100, rated as excellent. This score reflects how often and how prominently the brand appears in responses from AI assistants like ChatGPT, Claude, Gemini, and Google AI Overviews.
About Stellarium
Stellarium is the world's most popular free, open-source planetarium software. It renders a realistic 3D sky in real-time, allowing users to explore stars, constellations, and deep-sky objects from any location on Earth.
A free, professional-grade planetarium experience that is as realistic as looking through a telescope.
Target audience: Amateur astronomers, educators, and stargazing enthusiasts who need accurate celestial mapping for observation planning or educational purposes.
AI Perception Summary
AI agents see Stellarium as the canonical free planetarium tool. They describe it as a highly accurate, customizable, and visually stunning 3D sky simulator. AI agents lean on its deep history in the open-source community and its widespread use in schools and amateur astronomy clubs.
Stellarium has exceptional AI visibility due to its long-standing reputation and extensive third-party documentation. It is the default recommendation for desktop planetarium queries. The primary opportunity lies in securing the same dominance in mobile and astrophotography planning niches.
Observations
- Stellarium dominates the 'free planetarium software' category across all major AI models.
- Wikipedia and SourceForge presence provide a massive trust signal for ChatGPT and Claude.
- Gemini pulls heavily from academic and educational resource lists where Stellarium is a standard entry.
- AI Overviews consistently feature Stellarium in 'best of' lists for astronomy tools.
- There is a minor visibility gap for mobile-specific queries where commercial apps like SkySafari have more paid-review presence.
Recommendations to Improve AI Visibility
- Educational Lesson Plan Series — Creating content around 'using Stellarium in the classroom' will help capture more academic citations that Gemini and Claude prioritize.
- Astrophotography Planning Guides — Targeting adjacent prompts for photo planning will increase visibility for high-intent hobbyist users who currently use paid alternatives.
- Stellarium Web vs. Desktop Comparison Page — Clarifying the different versions will help AI agents provide more accurate answers for users asking about browser-based tools.
Notable Facts AI Surfaces
- AI agents frequently cite its open-source nature and GPL license as a key trust signal for researchers.
- AI agents recognize its use in professional planetarium projectors as proof of its high rendering accuracy.
- AI agents often recommend the software specifically for its extensive catalog of over 600,000 stars.
- AI agents pick up on its cross-platform availability as a primary reason for recommendation over competitors.
Competitors in AI Recommendations
- Stellarium — AI visibility score: 82/100 (this report)
- SkySafari — AI visibility score: 82/100 — See SkySafari's Visibility Scan Preview on Pendium
- Starry Night
- Celestia
- KStars — AI visibility score: 72/100 — See KStars's Visibility Scan Preview on Pendium
- SkyView — AI visibility score: 68/100 — See SkyView's Visibility Scan Preview on Pendium
Who's Asking About Stellarium
Amateur Astronomer — Hobbyist Stargazer
Experienced hobbyist seeking precise sky coordinates and realistic atmospheric simulation for night-sky viewing.
Primary goal: Find the most accurate free software for locating deep-sky objects.
Primary pain point: Paid software is often bloated; needs a reliable, community-trusted tool.
Science Educator — Teacher
Middle school teacher looking for interactive tools to demonstrate celestial mechanics to students.
Primary goal: Find a free, visual tool for classroom planetarium demonstrations.
Primary pain point: Limited school budget and need for software that runs on various student devices.
Astrophotographer — Photographer
Photographer planning long-exposure shots of the Milky Way or specific nebulae.
Primary goal: Determine exact rising and setting times for celestial targets.
Primary pain point: Difficulty predicting the exact position of objects relative to local landscape features.
Sample AI Prompts
- best free planetarium software for windows — ChatGPT: 95, Claude: 90, Gemini: 98, AI Overviews: 95
- alternatives to sky safari for desktop — ChatGPT: 85, Claude: 75, Gemini: 80, AI Overviews: 90
- realistic 3D sky map for amateur astronomy — ChatGPT: 80, Claude: 70, Gemini: 85, AI Overviews: 80
- how to plan a telescope observation session — ChatGPT: 60, Claude: 45, Gemini: 70, AI Overviews: 55
- software for classroom planetarium shows — ChatGPT: 75, Claude: 70, Gemini: 80, AI Overviews: 75
- best tools for astrophotography planning — ChatGPT: 50, Claude: 40, Gemini: 65, AI Overviews: 60
- compare starry night vs stellarium for beginners — ChatGPT: 90, Claude: 85, Gemini: 85, AI Overviews: 90
- what's that bright star in the south right now — ChatGPT: 40, Claude: 30, Gemini: 55, AI Overviews: 50
- open source astronomy software for linux — ChatGPT: 95, Claude: 90, Gemini: 95, AI Overviews: 95
- best sky map app for kids to learn constellations — ChatGPT: 55, Claude: 45, Gemini: 60, AI Overviews: 65
Suggested Content Ideas
- Finding Andromeda: A Beginner's Guide with Stellarium — A beginner's guide to finding the Andromeda Galaxy using Stellarium's desktop search tools.
- Building a Classroom Planetarium for Free — How to set up a virtual planetarium for your classroom using free open-source software.
- Stellarium vs Starry Night: The Best Free Choice — Why Stellarium is the best free alternative to Starry Night for Windows and Mac users.
- Planning Astrophotography with Stellarium — Planning the perfect Milky Way shot: Using Stellarium to predict visibility and moon phase.
- Top 5 Free Astronomy Tools for Linux — The 5 best free sky map programs for Linux users in the current year.
- How to Teach Kids Constellations with Stellarium — Teaching constellations to kids using the interactive constellation art in Stellarium.
- Stargazing in Your Browser with Stellarium Web — A step-by-step guide to using Stellarium Web for quick stargazing sessions without installs.
- Simulate Your Telescope View with Stellarium — How to simulate your exact telescope view in Stellarium for better observation planning.
- Best Free Planetarium Software for Windows — Comparing the top free planetarium software options for Windows 11 and beyond.
- Switching from SkySafari to Stellarium — Why SkySafari users are switching to Stellarium for their desktop sky mapping needs.
Industry: Software → Astronomy & Education.
Geographic focus: Global.
Full brand profile: See how Stellarium performs in deeper AI visibility scans on Pendium.
Browse more reports: Visibility Scan Previews.