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astropy

Category: physical-sciences · License: BSD-3-Clause license · Version: 1.3 Tags: astronomy, astrophysics, FITS, coordinates, cosmology, physics

When to use it

Core Python library for astronomy and astrophysics workflows that need Astropy APIs, including units/quantities, coordinates, FITS I/O, tables, time systems, WCS, and cosmology. Use when implementing or debugging astronomical data analysis code with Astropy.

Example requests

Ask your agent in plain language, for example:
  • “How do I convert a list of RA/Dec in ICRS to Galactic l, b?”
  • “I’m opening ngc1300_drz.fits with fits.open and want the science image from the ‘SCI’ extension plus the EXPTIME keyword. Then I need to turn pixel (512, 480) into RA/Dec. I’m getting ‘WARNING: FITSFixedWarning: ‘datfix’ made the change…’ when I build the WCS. What’s going on and how should I write this?”
  • “I have a catalog of supernova redshifts and need to know how far away they are in Mpc and how long ago the light left, assuming a flat universe with H0=70 and Om0=0.3. I’d also like to go back from a given distance to a redshift.”

Install

In Claude Code you can also add the marketplace with /plugin marketplace add KalarisLabs/research-agent-skills and install the whole physical-sciences category with /plugin install physical-sciences@research-agent-skills.

Full playbook

Read SKILL.md for the complete workflow, references and any scripts. The agent installer copies the full skill folder.
Last modified on October 19, 2026