Robuta

https://www.aanda.org/articles/aa/full_html/2025/05/aa52999-24/aa52999-24.html Comparing the Sun to Sun-like stars - The importance of addressing facular and/or spot domination |... https://www.aanda.org/articles/aa/full_html/2016/05/aa27419-15/aa27419-15.html The possible origin of facular brightness in the solar atmosphere | Astronomy & Astrophysics (A&A) the possible https://www.aanda.org/articles/aa/abs/2005/21/aa1425-04/aa1425-04.html Recovering facular areas through Doppler imaging | Astronomy & Astrophysics (A&A) doppler imaging astronomy astrophysics recovering facular areas