# sunpy/sunpy

SunPy - Python for Solar Physics

Repository: https://github.com/sunpy/sunpy
Canonical: https://ross.abutalabs.com/products/sunpy
Homepage: http://www.sunpy.org
Language: Python
License: BSD-2-Clause
License Family: permissive
Topics: sunpy, python, astronomy, solar, astropy, solar-physics, sun, hacktoberfest
Last push: 2026-08-26T10:55:11+00:00

## Health v2 (maintenance only)
Score: 92/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 99, release rhythm 78, longevity 100
- inputs: {"age_days": 5506, "days_push": 7, "days_rel": 64, "gap_med": 36, "n_releases_24m": 18}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1033, forks 675 (observed 2026-08-28T04:03:18.359023+00:00)

## What it is
SunPy is the community-developed open-source Python package for solar physics, providing a solar data analysis environment built on the scientific Python stack and Astropy. It offers tools for searching, downloading, manipulating, and visualizing solar observation data from missions like SDO and SOHO.

## Use cases
- download and analyze solar imagery from SDO/AIA in Python
- plot solar maps and coordinate-transform helioprojective data
- query solar event catalogs like flares and active regions
- analyze time series of solar irradiance measurements
- build a solar physics data analysis workflow with Astropy

## When to choose
- you need Python tools for solar observation data analysis
- you want FISS/HMI/AIA image handling with WCS-aware solar coordinates
- you need a free, community-supported alternative to IDL solar packages like SSW

## When to avoid
- you need general astronomy tooling unrelated to the Sun - use Astropy directly
- you need real-time mission operations or spacecraft commanding software

## Facets
- artifact type: library
- maturity: active
- function: data-science, data-visualization, sdk
- domain: astronomy, data-science
- platform: python, cross-platform
- tags: solar-physics, astronomy, astropy, scientific-computing, solar-data, physics

## Member repositories
- sunpy/sunpy (main) score 92

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:18.359023+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T07:06:41.901777+00:00, confidence not recorded.
  - readme: https://github.com/sunpy/sunpy (fetched 2026-08-28T04:03:18.359023+00:00, sha 2e262cb608c5)
  - homepage: http://www.sunpy.org (fetched 2026-08-29T13:09:05.821412+00:00, sha 2211747bcf6a)
- Data as of 2026-08-30T08:39:29.467469+00:00.