A Type Ia supernova is a type of supernova that occurs in binary systems in which one of the stars is a white dwarf. The other star can be anything from a giant star to an even smaller white dwarf. From Wikipedia
The newly identified system, located 150-160 light-years away, features a 14-hour orbit and a combined mass of 1.56 solar masses, marking it as a future Type Ia supernova candidate.
