"Unveiling the Secrets: Decoding a Medieval Manuscript's Impending Recurrent Nova"

A medieval manuscript from 1217 may contain the earliest recorded observation of a recurrent nova, specifically the star T CrB in the constellation Corona Borealis. The manuscript describes a "wonderful sign" of a faint star brightening and emitting a tall beam of light for several days. The researcher, Dr. Bradley Schaefer, rules out other possibilities such as a supernova or comet and concludes that the observation is likely a misidentification of T CrB during an eruption. If the star follows its previous pattern, it is predicted to brighten again in early spring 2024.