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OpenSPH VS Stellarium

Compare OpenSPH VS Stellarium and see what are their differences

OSP
OpenSPH

Education & Reference

Rating
0 reviews
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Alternatives Is it good?
Stellarium

Stellarium is a free open source planetarium for your computer.

Rating
0 reviews
Pricing
Open source
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Which is more popular?

Based on our record, Stellarium seems to be more popular. It has been mentioned 252 times since March 2021.

social mentions
0 vs 252
Universe Simulator popularity
13% vs 87%
alternatives listed
9 vs 59

Base details

Website, pricing, platforms and company facts side by side.

OSP
OpenSPH
Stellarium
Website pavelsevecek.github.io stellarium.org
Pricing —
Open source
Listed in
Space Simulator Universe Simulator Virtual Universe Education & Reference +1
Space Simulator Virtual Universe Universe Simulator Education & Reference +1

Features and specs

What each product offers, as listed by its team.

OSP
OpenSPH 4 features
Stellarium 6 features
  • Open Source
    OpenSPH is open source, allowing users to access, modify, and contribute to its development, fostering a collaborative environment.
  • Scientific Computing
    It is designed for scientific computing, providing tools that are specifically tailored for simulations in astrophysics and fluid dynamics.
  • Customizability
    The software allows for significant customization and flexibility, helpful for researchers with specific requirements for their simulations.
  • Community Support
    Being open source, it benefits from community support, including forums and potential peer collaboration.

Possible disadvantages

  • Complexity
    The software can be complex to use, especially for individuals who are not familiar with scientific computing or fluid dynamics.
  • Documentation
    Sometimes open source projects may have sparse documentation, which can make it difficult for new users to learn and troubleshoot.
  • Limited Audience
    Its specialized nature means it is primarily useful to a niche audience, such as researchers and scientists, rather than general users.
  • Resource Intensive
    Running large simulations can be resource-intensive, requiring powerful hardware to perform efficiently.
  • User-Friendly Interface
    Stellarium offers an intuitive and easy-to-use interface that makes it accessible for both beginners and advanced users. The clean design and accessible controls enhance user experience.
  • Realistic Sky Simulation
    The software provides a highly realistic simulation of the night sky, featuring accurate depictions of stars, planets, and other celestial objects. This realism is beneficial for educational purposes and amateur astronomers.
  • Extensive Database
    Stellarium includes a vast database of celestial objects, including over 600,000 stars, nebulae, galaxies, and other astronomical phenomena. Users can also extend this database by downloading additional catalogues.
  • Open Source
    Being an open-source project, Stellarium is free to use and benefit from continuous improvements and updates driven by a community of developers and enthusiasts. This also means users can contribute to its development.
  • Cross-Platform Compatibility
    Stellarium is compatible with multiple operating systems, including Windows, macOS, and Linux, ensuring that a wide range of users can use the software regardless of their system preferences.
  • Educational Features
    The software includes various educational tools such as constellation lines, mythological figures, and extensive descriptions of celestial objects, making it ideal for teaching astronomy.

Possible disadvantages

  • High System Requirements
    Stellarium can be resource-intensive, requiring a reasonably powerful computer to run smoothly. This might be a limitation for users with older or less powerful systems.
  • Steep Learning Curve for Advanced Features
    While the basic features are easy to use, more advanced features and customizations can be complex, requiring users to invest time in learning how to fully utilize the software.
  • Limited Mobile Functionality
    The mobile versions of Stellarium do not offer the same level of functionality and features as the desktop version, which might be disappointing for users looking for a robust mobile stargazing app.
  • Occasional Bugs
    As with many open-source projects, users may encounter occasional bugs or glitches. While these are often fixed quickly, they can be a source of frustration.
  • No Direct Telescope Support
    Unlike some other astronomy software, Stellarium does not offer direct support for controlling telescopes, which might be a drawback for advanced amateur astronomers looking for a comprehensive tool.

Analysis

An editorial look at what each product does well and who it suits.

OSP
OpenSPH
Stellarium

Overall verdict

  • OpenSPH is a solid, specialized open-source tool for smoothed particle hydrodynamics simulations, particularly well-suited for astrophysical applications like asteroid collisions and planetary impacts. It's free, actively developed by an academic researcher, and produces high-quality scientific visualizations.

Why this product is good

  • Free and open-source, making it accessible for researchers, students, and hobbyists without licensing costs
  • Specialized for astrophysical SPH simulations such as asteroid collisions, fragmentation, and gravitational reaccumulation
  • Includes both a computational core and a GUI for visualization and analysis of simulation results
  • Developed and maintained by an active researcher (Pavel Ševeček), grounded in peer-reviewed scientific methods
  • Supports N-body gravity and material strength models relevant to planetary science
  • Well-documented with examples suited to academic and scientific use

Recommended for

  • Astrophysics and planetary science researchers studying asteroid and planetary collisions
  • Graduate students and academics needing an SPH simulation framework
  • Scientists requiring simulations of fragmentation and gravitational reaccumulation
  • Developers and hobbyists interested in open-source physics simulation code
  • Educational settings teaching computational physics and hydrodynamics

Overall verdict

  • Yes, Stellarium is a highly regarded and effective tool for anyone interested in astronomy, from beginners to enthusiasts. Its comprehensive features and open-source nature make it a valuable resource for studying and appreciating the night sky.

Why this product is good

  • Stellarium is a popular open-source planetarium software that offers a realistic 3D simulation of the night sky. It is favored for its user-friendly interface, extensive catalog of stars, planets, and other celestial bodies, and its ability to serve as both an educational tool and a resource for amateur astronomers. Stellarium provides real-time updates, customization options, and compatibility with various operating systems, making it accessible to a wide range of users.

Recommended for

  • Amateur astronomers
  • Students and educators seeking an interactive learning tool
  • Hobbyists interested in stargazing or astrology
  • Individuals preparing for nighttime observation events

Videos

Walkthroughs and reviews on video.

OSP
OpenSPH 0 videos + Add
Stellarium 3 videos + Add

No OpenSPH videos yet. You could help us improve this page by suggesting one.

Stellarium - App REVIEW - Games in Education (Astronomy)

More videos

  • - Intro to Stellarium 2019
  • - Apple's Iphone planetarium free app: Stellarium review and comments, perfect stargazing companion

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
OSP
OpenSPH
Stellarium
13% 13%
Universe Simulator
87% 87%
6% 6%
Space Simulator
94% 94%
9% 9%
Virtual Universe
91% 91%
12% 12%
Education & Reference
88% 88%

User comments

Share your experience with using OpenSPH and Stellarium. For example, how are they different and which one is better?

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Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

OSP
OpenSPH 0 mentions
Stellarium 252 mentions

Tracking OpenSPH since Mar 2026.

  • I built an AI planetarium by adding a plugin to Stellarium
    I wanted to say "show me Mars" to a planetarium and have it fly there. So I built Nebula: an AI assistant plugin for Stellarium, the open-source planetarium. - Source: dev.to / about 9 hours ago
  • SkyMap
    This is very cool, and looks like it targets you wanting to look stuff up and I will probably use it at some point. But I feel that anyone looking at this and thinking "oh that's cool" should also try installing Stellarium... - Source: Hacker News / over 2 years ago
  • Stellarium is a free GPL software which renders realistic skies in real time
    The project website is at http://stellarium.org/. There is no need to have images inside a project repository. Every maintainer already knows what it looks like. What next? Marketing materials? - Source: Hacker News / almost 3 years ago

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Alternatives to OpenSPH and Stellarium

When comparing OpenSPH and Stellarium, you can also consider the following products.

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