steren’s avatarsteren’s Twitter Archive—№ 7,342

  1. "Our main result is that Betelgeuse was recorded with a colour significantly different (non-red) than today (red). Hyginus (Rome) and Sima Qian (China) independently report it two millennia ago as appearing like Saturn in colour and `yellow', respectively" arxiv.org/abs/2207.04702
    OpenGraph image for arxiv.org/abs/2207.04702
    On twitter.com ↗ steren’s avatar ❤️ 1 Favorite 2022 Aug 16 Mood +2 🙂