Robuta

https://www.newworldencyclopedia.org/entry/Hertzsprung-Russell_diagram Hertzsprung-Russell diagram - New World Encyclopedia hertzsprung russell diagram new world encyclopedia https://www.aanda.org/articles/aa/full_html/2019/08/aa35752-19/aa35752-19.html Strongly magnetic Ap stars in the Gaia DR2 Hertzsprung-Russell diagram - I. Selecting the most...