Uploaded February 2020 | Updated September 2026, 2 weeks ago
Models of Betelgeuse-like stars based on real physics of how energy and gas move though the star simulate what happens inside them, showing the convection as huge bubbles of hot gas as big as the star rise, cool, and sink again. This profoundly affects the brightness we see from Betelgeuse, causing it to dim and brighten over a time period of about 420 – 430 days. There's a jump at about 00:32 when the viewpoint changes to see the same convection as the first part of the video from a different angle.
Credit: Bernd Freytag
Videos and images from the simulations: https://www.astro.uu.se/~bf/movie/dst35gm04n26/movie.html
Models of Betelgeuse-like stars based on real physics of how energy and gas move though the star simulate what happens inside them, showing the convection as huge bubbles of hot gas as big as the star rise, cool, and sink again. This profoundly affects the brightness we see from Betelgeuse, causing it to dim and brighten over a time period of about 420 – 430 days. There's a jump at about 00:32 when the viewpoint changes to see the same convection as the first part of the video from a different angle.
Credit: Bernd Freytag
Videos and images from the simulations: https://www.astro.uu.se/~bf/movie/dst35gm04n26/movie.html
