Solving the gravitational two-body problem.

Python bindings for ERFA routines

☔ Implementations of mathematical functions, formulas and concepts

Lecture slides, Jupyter notebooks, and other material from the LSSTC Data Science Fellowship Program

Main repo

Elegant astronomy for Python

Source code for the Pre-v0.3 Astropy website. DEPRECATED - use astropy.github.com from now on.

Python version of NASA DE4xx ephemerides, the basis for the Astronomical Alamanac

Astropy package for source detection and photometry. Maintainer: @larrybradley

An Astropy coordinated package for astronomical spectroscopy. Maintainers: @rosteen @keflavich @eteq

Refractive index of air, and vacuum-air wave length conversion.

Classes for representing angles, and positions on a unit sphere.

Julian dates, stored as two numbers, from proleptic Gregorian and Julian calendars.

Template for packages that use Astropy. Maintainer: @astrofrog

Automatic layout of labels for features in a plot.

⚡ Fast scatter density plots for Matplotlib ⚡

The Astropy web pages

Astronomy and astrophysics core library

Practical Python for Astronomers

Practical Python for Astronomers workshop

Astronomical Plotting Library in Python

Astronomical Tables in Python

f2py and numpy wrappers of the fortran version of the astro library SLALIB

f2py and numpy wrappers of the fortran version of the astro library SLALIB

Python interface to the Telescope Pointing Machine C library.

Extensible ASCII table reader

Python wrapper around the NAIF CSPICE library