T Coronae Borealis

T Coronae Borealis (T CrB) is a recurrent nova within the Milky Way which has erupted periodically, roughly every 80 years over the last few centuries, the most recent occurrence in 1946, and previous to that in 1866. According to pattern, it would erupt in about 2026, and its light curve shows features similar to those leading up to its 1946 eruption, thus there is anticipation regarding the opportunity to study such a nova with current equipment and techniques. It is a binary star consisting of a white dwarf and a red giant.

Other such Milky-Way recurrent novae include T Pyxidis (T Pyx) which erupted in 1944, 1967, and 2011, and IM Normae (IM Nor) which erupted in 1920 and 2002.