Pulsar

Rotation

• All stars spin. When a star collapses in to a neutron star under gravity, its volume is reduced. Law of conservation of angular momentum dictates that it's rotational velocity must increase
• Slowest rotates once every 9.43 seconds
• fastest 716 times per second, angular velocity at its surface is 97 million mph

Examples

• Crab nebula has a spinning neutron star in its center
  • It blinks 30 times a second
  • This nebula (6 light years in diameter) is visible due to the radiation from the pulsar, which is 10 miles in diameter