# #1749 : La transition de la supergéante rouge WOH G64 en une hypergéante jaune

Page: https://stenobird.com/podcast/a-se-passe-l-haut-745418/1749-la-transition-de-la-superg-ante-rouge-woh-g64-en-une-hyperg-ante-jaune
Text version: https://stenobird.com/podcast/a-se-passe-l-haut-745418/1749-la-transition-de-la-superg-ante-rouge-woh-g64-en-une-hyperg-ante-jaune.md
Podcast: [Ça Se Passe Là-Haut](https://stenobird.com/podcast/a-se-passe-l-haut-745418)
Published: 2026-02-28T18:06:00+00:00
Episode link: https://www.ca-se-passe-la-haut.fr/2026/02/la-transition-de-la-supergeante-rouge.html
Audio file: https://stats.podcloud.fr/casepasselahaut/numero-1749-la-transition-de-la-supergeante-rouge-woh-g64-en-une-hypergeante-jaune/enclosure.f999403e81f2a96fb2c32cc6aaff4158f9b265a0acea7021890864750c664429.mp3?p=f
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JSON: https://stenobird.com/v1/public/podcasts/a-se-passe-l-haut-745418/episodes/1749-la-transition-de-la-superg-ante-rouge-woh-g64-en-une-hyperg-ante-jaune
Duration seconds: 858

## Resource

Une nouvelle étude parue dans Nature Astronomy montre que l'une des plus grandes étoiles connues, nommée WOH G64, a subi une transformation spectaculaire en 2014 en passant de supergéante rouge à hypergéante jaune. Ce changement brutal pourrait être le signe d'une supernova imminente. Source The dramatic transition of the extreme red supergiant WOH G64 to a yellow hypergiant Gonzalo Muñoz-Sanchez et al. Nature Astronomy (23 february 2026) https://doi.org/10.1038/s41550-026-02789-7 Illustrations Image de WOH G64 par le VLTI et représentation d'artiste (ESO/K. Ohnaka et al., L. Calçada) Evolution du spectre de WOH G64 lors de la transition (Muñoz-Sanchez et al.) Gonzalo Muñoz-Sanchez

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