6 magnitudes in 1992 and was identified as one of a rare class of stars—R Coronae Borealis variables. Eclipsing variables are star systems that vary in brightness...

(1816–1884) – Irish astronomer who discovered the recurrent nova T Coronae Borealis and revised and extended Schjellerup's Catalogue of Red Stars Henri...

and supergiants Luminous blue variable Gamma Cassiopeiae variable R Coronae Borealis variable Eruptive binary RS Canum Venaticorum variable Cataclysmic...