T Coronae Borealis (or T CrB), a recurrent nova exploding every ~80 years, is showing peculiar spectral variations. A recent report from the monitoring at the Tautenburg observatory states that “the current spectral changes indicate a strong increase in the accretion rate, which will eventually result in a Nova eruption, as predicted to occur this or next year (e.g., Schaefer et al. 2023).”
We should keep a close eye on this one…