THE NETWORK OF MAGNETARS
»A neutron star is created when a star collapses in a supernova. This compresses a huge sun into a massive sphere with a diameter of about 12 miles. Due to the principles of electrodynamics, the magnetic field of the original sun does not shrink; instead, the original angular momentum is preserved so it remains the same— its cross section is just a million times smaller. The resultant field strength is several quadrillion times stronger than the magnetic field of our Sun.
magnetic field 360° radius