About J1034-3224
J1034-3224 is an uncommon pulsar. It spins once every 1,150.59 ms, has a dispersion measure of 50.75 pc cm⁻³ and carries a surface magnetic field around 5.21×10^11 G.
The collapsed core of a star that exploded: about one and a half Suns of matter crushed into a ball the size of a city, held up only by the refusal of neutrons to be squeezed further.