pyswisseph
The premium Open Source alternative to Skyfield
🎯 Best for:Developers building applications requiring precise planetary positions
What is pyswisseph?
A Python extension providing access to the Swiss Ephemeris library for planetary position calculations. It enables high-precision astronomical and astrological computations based on JPL planetary data and Delta T corrections.
Tech Stack
CPhysics & Astronomy
Why pyswisseph?
- • High computational accuracy
- • Extensive historical data
- • Low memory footprint
Limitations
- • Complex C-binding installation
- • Steep learning curve
- • Limited documentation
3/1/2026
Last Update
99
Forks
24
Issues
AGPL-3.0
License
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Competitor Cost
-$1,440
/ year (est. based on Skyfield)
Self-Hosted
$0
/ year
Team Size10 Users
150+
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