Generates realistic images of galaxies and stars for weak lensing and cosmological surveys. Features a modular C++ backend with a Python interface for high-performance astronomical rendering.
Tech Stack
PythonPhysics & Astronomy
Why GalSim?
• Extremely accurate photon shooting
• Highly modular architecture
• Extensive validation tests
Limitations
• Difficult C++ compilation
• Steep API learning curve
• Heavy resource requirements
2/22/2026
Last Update
117
Forks
21
Issues
Other
License
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