Astro-related Tools

General

Originally a version control system, but can be used to host all sorts of things from code to data to websites.

A free Jupyter notebook environment. You can run python code and make full documents with text/images/latex to annotate your code.

A python library for doing astronomy.

A source for current satellite orbit information. Also has a browswer visualizer system to see the orbits in relation to the Earth.

Need to know where Mars was on any given date/time? Here's your source.

Access current data on stars and more

Sky simulator in your browser (Windows app also available)

Large application for full on sci-viz of astro data.

Easy to use sky simulator. Desktop app and browswer based.