A Ferrari shift Knob/800,000,000 TONS

http://www.universetoday.com/2008/11/14/new-insights-on-magnetars/


Neutron stars are leftovers of massive stars (10-50 times as massive as our Sun) that have collapsed under their own weight. Most are only about 20 km in diameter

but they are so compact that a teaspoon of neutron star stuff would weigh about one hundred million tons.

Two other physical properties characterize a neutron star: their fast rotation and strong magnetic field. Magnetars form a class of neutron stars with ultra-strong magnetic fields, approximately a thousand times stronger than that of ordinary neutron stars, making them the strongest known magnets in the cosmos. But astronomers have been unsure exactly why magnetars shine in X-rays. Data from ESA’s XMM-Newton and Integral orbiting observatories are being used to test, for the first time, the X-ray properties of magnetars.