Analysis of information sources in references of the Wikipedia article "Corona Borealis" in English language version.
There's another sign that T CrB is getting ready to blow also, Cooke says. 'We know that before it goes nova it dims for about a year, and T Coronae Borealis started dimming back in March 2023, so that's why we think it's going to go nova between now and the end of September.' As of March 2025, the star has not yet gone nova.