# Spectral change in T Coronae Borealis **URL:** \ **Category:** General\ **Tags:** nova\ **Created:** [February 11, 2025, 3:52pm UTC](https://forum.astro-colibri.science/t/spectral-change-in-t-coronae-borealis/334 "2025-02-11T15:52:19Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![Fabian.Schussler](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.astro-colibri.science/fabian.schussler/32/25_2.png) [@Fabian.Schussler](https://forum.astro-colibri.science/u/Fabian.Schussler)\ **Post date:** [February 11, 2025, 3:52pm UTC](https://forum.astro-colibri.science/t/spectral-change-in-t-coronae-borealis/334/1 "2025-02-11T15:52:19Z")
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… > **[ATel #17030: A sudden increase of the accretion rate in T Coronae Borialis](https://www.astronomerstelegram.org/?read=17030)** ---
**Author:** ![Fabian.Schussler](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.astro-colibri.science/fabian.schussler/32/25_2.png) [@Fabian.Schussler](https://forum.astro-colibri.science/u/Fabian.Schussler)\ **Post date:** [February 15, 2025, 2:47pm UTC](https://forum.astro-colibri.science/t/spectral-change-in-t-coronae-borealis/334/2 "2025-02-15T14:47:23Z")
Updated measurements, same conclusion (“_This indicates that the rate of flux increase has drastically risen in recent days, particularly in early February 2025_”): > **[ATel #17041: T CrB on the Verge of an Outburst: H alpha Profile Evolution and...](https://www.astronomerstelegram.org/?read=17041)**