PSR B1509-58: A 1700-year-old pulsar and its nebula, located about 17,000 light years from Earth.
Caption: At the center of this Chandra image, a pulsar -- only twelve miles in diameter -- is responsible for this X-ray nebula that spans 150 light years. This pulsar is spinning around almost 7 times a second and has a magnetic field at its surface estimated to be 15 trillion times stronger than the Earth’s magnetic field. This combination of rapid rotation and ultra-strong magnetic field drives an energetic wind of electrons and ions, ultimately creating the elaborate nebula seen by Chandra.
Scale: Image is
19.6 arcmin across.
Chandra X-ray Observatory