Pre-Columbian civilizations of the Andes region identified astronomical configurations based on dark silhouettes rather than bright stars.
Sources
- Andean dark constellations (en.wikipedia.org)
- https://astronoo.com/en/andean-astronomy.html (astronoo.com)
- https://www.sciencefriday.com/articles/deep-roots-of-astronomy-in-latin-america/ (sciencefriday.com)
- https://futurism.com/the-dark-constellations-of-the-incas (futurism.com)
- https://www.colorado.edu/today/2016/11/09/read-stars-inca-secrets-andean-skies (colorado.edu)
- https://www.researchgate.net/publication/343490045_Inca_Astronomy_and_Cosmology (researchgate.net)
- https://planetariumcusco.com/sustainable-energy-how-is-this-planetarium-becoming-solar/ (planetariumcusco.com)
- https://arxiv.org/pdf/physics/0408037 (arxiv.org)
- https://andeantravelexperience.com/blog/inca-astronomy (andeantravelexperience.com)
- https://www.urosexpeditions.com/blog/astronomy-in-cusco (urosexpeditions.com)
- https://www.machupicchu.org/the-secret-astronomical-calendar-of-machu-picchu-ancient-inca-sky-science.htm (machupicchu.org)