* R and T Coronae Borealis: Two Stellar Opposites at Sky & Telescope* http://www.daviddarling.info/encyclopedia/B/Blaze_Star.html* AAVSO: Quick Look View of AAVSO Observations (get recent magnitude estimates for T CrB)
==See also==* John Birmingham (astronomer)==References====Further reading==* R and T Coronae Borealis: Two Stellar Opposites at Sky & Telescope==External links==* http://www.daviddarling.info/encyclopedia/B/Blaze_Star.html* AAVSO: Quick Look View of AAVSO Observations (get recent magnitude estimates for T CrB)