About J1914+0838
J1914+0838 is an uncommon pulsar. It spins once every 440.04 ms, has a dispersion measure of 290.7 pc cm⁻³ and carries a surface magnetic field around 5.14×10^11 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.