The Great Dimming of Betelgeuse seen by the Himawari-8 meteorological satellite

Daisuke Taniguchi, Kazuya Yamazaki, Shinsuke Uno

Betelgeuse, one of the most studied red supergiant stars, dimmed in the optical by ~1.2 mag between late 2019 and early 2020, reaching an historical minimum called "the Great Dimmi…