Object Analysis

The Crab Pulsar (PSR B0531+21) is a relatively young neutron star located at the center of the Crab Nebula. It is the remnant of the supernova observed in 1054 AD. The pulsar is roughly 20 kilometers in diameter and spins 30 times per second.

This rapid rotation powers the nebula surrounding it. The pulsar emits beams of radiation from gamma rays to radio waves that sweep across the Earth like a lighthouse beam, creating the "pulsing" effect detected by radio telescopes. It was one of the first pulsars connected to a supernova remnant, providing the first direct evidence that neutron stars are formed in supernova explosions.

The energy released as the pulsar slows down is enormous—about 75,000 times the luminosity of the Sun. This energy creates a "pulsar wind nebula," a magnetized bubble of high-energy particles that lights up the interior of the Crab Nebula in X-rays and visible light.