WD J1953−1019 is a hierarchical triple system of white dwarfs located at about 130 parsecs (about 420 light years) from the Earth.

[3][1] The three white dwarfs have an atmosphere of pure hydrogen and a mass of about 0.6 times that of the Sun.

[1] The cooling age found by M. Perpinyà-Vallès and collaborators for the three white dwarfs is consistent, with an estimated value between 40 and 290 million years.

A collision of the central pair due to Lidov-Kozai oscillations is unlikely as the system is dynamically stable.

[1] However, if this collision occurred, it could produce a type Ia supernova below the Chandrasekhar mass.