Scientific-grade astronomy routines for Python

Astrometry.net -- automatic recognition of astronomical images

Python and C library for source extraction and photometry

Extract catalogs of sources from astronomical images

Essential Routines for Fundamental Astronomy. Maintainers: @eteq @mhvk @sergiopasra

multi-dimensional adaptive integration (cubature) in C

SAOImage DS9 is an astronomical imaging and data visualization application.

Image Mosaics for Astronomers

PostgreSQL extension for spatial indexing on a sphere

Python connection to SAOimage DS9 via XPA

snapshots of releases and interim labels for "xterm" https://invisible-island.net/personal/git-exports.html (no pull requests)

C and Fortran library for reading and writing FITS files

A package for combining dithered images into a single image

Compute astrometric solutions from SExtractor catalogs

giza - a scientific plotting library for C/Fortran

Generate PSF super-tabulated models

resample and coadd FITS images to an arbitrary astrometric projection

An extension for Tk to read SVG images based on nanosvg

Positional Astronomy Library

a "minimal buy-in" FITS library and utility package for astronomical data analysis

X11/GUI utilities and applications for IRAF (xgterm, ximtool, xtapemon)

Starlink AST Library

Derived version of the BLT Toolkit, Tcl/Tk 8.5/8.6 TEA compatible.

TK HTML Widget, Tcl/Tk 8.5/8.6 TEA compatible.

IVOA LaTeX toolkit for document authors

A set of python modules for producing simple plots, statistics, common calculations, coordinate conversions, and manipulating FITS images with World Coordinate System (WCS) information.

Derived version of the TKtable Widget, Tcl/Tk 8.5/8.6 TEA compatible.