At a distance of halfway between the moon and Earth, it would erase all the information on the magnetic strips of your credit cards and all any other electronic device. Inter nuclear mag field is around 40T but remember magnetism drops off as r 2. Neutron stars come from the death of a super massive star, typically when it goes nova (in a GRB/supernova type situation). When it gets of order the distance of the Moon away, the magnetic field is strong enough to wipe credit card information. What would happen to the Earth as a magnetar approached it? In all neutron stars, the crust of the star is locked together with the magnetic field so that any change in one affects the other. We know this because weâve already come a little too close on at least one occasion. When these stars run out of fuel, their core collapses causing outer layers to come crashing in towards the centre. ... Earth wouldn't survive once it got close enough. They tracked that fast radio burst to a weird type of star called a magnetar thatâs 32,000 light-years from Earth, according to four studies published Wednesday in ⦠However magnetars produce gamma ray bursts and other types of radiation not to mention gravity is strong close to one so yeah before you worry about your blood you would be in deep trouble already A magnetar is a type of neutron star believed to have an extremely powerful magnetic field (â¼10 9 to 10 11 T, â¼10 13 to 10 15 G). Inter atomic distance is 10-15 m and your distance to a magnetar is several miles in this case.. Another type of neutron star is called a magnetar. One would likely only destroy Earth in the case of a direct impact. What Iâd like to know is, would a magnetar swallow a black hole, or would a black hole gobble up a magnetar? Magnetars. But would it be as bad from a distance of 26 light-years away? As stars are so large the crushing forces created can be phenomenal. Starquakes happen when a starâs crust cracks, letting massive amounts of radiation out into space. But, then you still have an object with over the mass of the Sun really close ⦠In a typical neutron star, the magnetic field is trillions of times that of the Earth's magnetic field; however, in a magnetar, the magnetic field is another 1000 times stronger.. Magnetars are a special kind of neutron star, and neutron stars are a special kind of dead star. Super massive stars are rare and there isn't one close to us at all. You totally misunderstand the power of a magnetar. If a magnetar were to somehow get too close to our planet, you would start feeling its presence instantaneously. In a tenth of ⦠If one of those magnets came halfway between the Moon and the Earthâ¦well, you know, it wouldnât be pretty. Regardless of the effect. In fact, the most powerful starquake ever recorded came from a magnetar called SGR 1806-20, located about 50,000 light years away. 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