This is a question for the astronomers and other scientists that have knowledge of magnatars. I am conducting some research for a science fiction novel, and I would like to be somewhat reasonable in my canon. Here is my question: How many AUs would be the minimum safe distance from a somewhat older magnatar (older, because it has a period of say 8-10 seconds). The hypothetical purpose would be to observe/study its strong magnetic field and perhaps (again, science fiction so don't take this the wrong way) sap its angular momentum through reactive inductance by placing a load on the field. I realize that this is so out of the ordinary, but it is a hard science fiction novel and I would appreciate any knowledge you could give in regard to this scenario. I realize that the magnetic fields of magnatars are unimaginably strong, so I am figuring it will have to be quite a distance. Thanks in advance for any that take the time to seriously answer this question. Humbly, Ts.