A binary star was a star system where two stars that revolved around a common center of mass in a single star system. Sometimes the pair would become stable enough that planets would form around them, such as with the Tatoo system and the Byss and Abyss system. Planets orbiting around such star systems often orbited their parent stars in a figure of eight fashion, as such in the case of Byss. Having two suns did not make the world a hot one, in the case of Tatooine. Early in its planetary history, around 2,000,000 BBY, Tatooine was actually a lush and verdant world which produced the Kumumgah species. After defying their Rakatan masters, the planet was subject to an orbital bombardment as punishment that caused the silica in the soil to fuse and become glass, which over time became sand, and caused a drastic climate shift which resulted in Tatooine becoming a desert world.
Two suns often put the system at risk, with twice the chance of a supernova occurring.
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