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astropy

Handle physical units, celestial coordinates, FITS I/O, tables, time systems, WCS, and cosmology in Python astronomy workflows.

Updated Jul 1, 2026
Search Tags:#astronomy#coordinates#cosmology#astropy#astrophysics#fits#wcs
One-click install
npx skills add https://github.com/jasrajtulsi/GRAD-SCOPE --skill astropy-jasrajtulsi
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: astropy
Source: https://github.com/jasrajtulsi/GRAD-SCOPE/tree/main/.claude/skills/astropy
Command: npx skills add https://github.com/jasrajtulsi/GRAD-SCOPE --skill astropy-jasrajtulsi

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

Astropy gives astronomy and astrophysics projects a unified way to work with units, coordinates, FITS files, tables, time systems, WCS, and cosmology without stitching together separate libraries.

Core Features & Use Cases

  • Unit-safe calculations: Convert and combine physical quantities reliably across scientific workflows.
  • Sky and observatory work: Transform celestial coordinates, match catalogs, and handle observer-dependent frames and timing.
  • Data and image analysis: Read FITS files, inspect tables, map pixels to world coordinates, and support modeling, visualization, and statistics.
  • Use Case: A researcher can load a FITS catalog, cross-match sources in different frames, convert times to the correct scale, and compute cosmological distances for downstream analysis.

Quick Start

Ask for help implementing or debugging an astronomy analysis task with Astropy, such as reading a FITS file, converting coordinates, or computing a cosmological distance.

Frequently Asked Questions about astropy

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I convert celestial coordinates between different frames for catalog cross-matching?▼

Astropy converts celestial coordinates for catalog cross-matching using SkyCoord transformations. It handles observer-dependent frames so you can reliably match sources across different catalogs in Python.

Can I read FITS files and map pixels to world coordinates in Python?▼

Yes, you can read FITS files and map pixels to world coordinates using Astropy's FITS I/O and WCS mapping features. This supports remote FITS inspection and image analysis workflows directly in Python.

What's the best way to handle physical units safely in astrophysics calculations?▼

Unit-aware quantities in Astropy let you handle physical units safely by converting and combining physical quantities reliably. This prevents calculation errors across scientific workflows.

Does this astronomy toolkit support time system conversions for observatory timing?▼

Astropy supports observatory timing through Time conversions that handle time systems and scales. You can convert times to the correct scale required for downstream astronomical analysis.

How do I compute cosmological distances for astronomical data analysis?▼

Astropy computes cosmological distances through its cosmology module. You can calculate distances for downstream analysis after loading and transforming your astronomical data in Python.

Do I need Python 3.11 to use Astropy for scientific data transformation?▼

Yes, Astropy requires Python 3.11 or higher to run. You need the Astropy package installed to perform scientific data transformation, modeling, visualization, and statistics tasks.

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