Austrinus is a Spanish-language astronomy website created by Farid Char, launched on November 25, 2000, and maintained solely by its author. Based in the southern hemisphere, with content originating from Antofagasta, Chile, it offers resources for astronomy enthusiasts at beginner and advanced levels. Its material covers astronomy fundamentals, sky observation, the Solar System, deep space, and equipment, supported by observing guides, brief articles, and explanations that address common astronomy myths.

Visitors can use an interactive sky viewer to explore constellations and print night-sky charts, consult astronomical event listings, and watch time-lapse and other multimedia content. Practical guides cover astrophotography, observing at home or outdoors, telescope purchasing, and night photography with or without a telescope. The site also features the author’s astrophotography galleries and Caelum Austrinus 300, a catalog of 300 deep-space objects visible from the southern hemisphere, alongside information about astronomy outreach projects.

Austrinus has announced a forthcoming astronomy book and an Astro Shop, where astrophotographs are expected to be offered