The nova is ignited when a "vampirific" white dwarf steals too much matter from a companion star.

Hold onto your hats! Is the 'blaze star' T Corona Borealis about to go boom?

Source: space
Source Link: https://www.space.com/the-universe/stars/hold-onto-your-hats-is-the-blaze-star-t-corona-borealis-about-to-go-boom