Robuta

https://www.aanda.org/articles/aa/full_html/2015/03/aa24638-14/aa24638-14.html Mining R Coronae Borealis stars from Catalina surveys | Astronomy & Astrophysics (A&A) r coronae borealis astronomy astrophysics mining stars https://www.aanda.org/articles/aa/abs/2012/03/aa17874-11/aa17874-11.html Tracking down R Coronae Borealis stars from their mid-infrared WISE colours | Astronomy &... r coronae borealis https://en.wikipedia.org/wiki/R_Coronae_Borealis_variable R Coronae Borealis variable - Wikipedia r coronae borealis variable wikipedia