About J2325+6316
J2325+6316 is an uncommon pulsar. It spins once every 1,436.31 ms, has a dispersion measure of 197.37 pc cm⁻³ and carries a surface magnetic field around 2.04×10^12 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.