Pulsar
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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