Astronomers Monitor T Coronae Borealis for Imminent Nova Outburst

The rare recurrent nova, last seen in 1946, shows signs of activity but remains unpredictable.

T Coronae Borealis (T CrB), a recurrent nova, was predicted to brighten in 2024 but has yet to do so as of early 2025.
The binary star system, located 2,000 light-years away, undergoes nova outbursts approximately every 80 years due to hydrogen accretion on its white dwarf companion.
Recent spectral observations show increased hydrogen line activity, suggesting heightened accretion rates that could precede an eruption.
During an outburst, T CrB's brightness could reach 2nd magnitude, making it briefly visible to the naked eye in the constellation Corona Borealis.
Astronomers worldwide, including teams using advanced telescopes like JWST and Hubble, are closely monitoring the star for further developments.