About J1650-4601
J1650-4601 is an uncommon pulsar. It spins once every 127.123 ms and carries a surface magnetic field around 1.40×10^12 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.