Simon Willison’s Weblog

Stellarium. Really lovely open source planetarium application, for Linux, OS X and Windows.

Posted 7th July 2009 at 12:37 am

Recent articles

First impressions of Claude Cowork, Anthropic's general agent - 12th January 2026
My answers to the questions I posed about porting open source code with LLMs - 11th January 2026
Fly's new Sprites.dev addresses both developer sandboxes and API sandboxes at the same time - 9th January 2026

open-source 283 planetarium 1 space 6 stellarium 1

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