aka The Crab Nebula,NGC 1952,Taurus A - is a supernova remnant and pulsar wind nebula in the constellation of Taurus.
The common name comes from William Parsons, 3rd Earl of Rosse, who observed the object in 1840 using a 36-inch telescope and produced a drawing that looked somewhat like a crab.
The nebula was discovered by English astronomer John Bevis in 1731, and it corresponds with a bright supernova recorded by Chinese astronomers in 1054.

At an apparent magnitude of 8.4, it is not visible to the naked eye but may be made out using binoculars under very favourable conditions.
The nebula lies at a distance of about 2.0 kiloparsecs (6,500 ly) from Earth.
It has a diameter of 3.4 parsecs (11 ly), corresponding to an apparent diameter of some 7 arcminutes,

At the center of the nebula lies the Crab Pulsar, a neutron star 28–30 kilometres (17–19 mi) across with a spin rate of 30.2 times per second, which emits pulses of radiation from gamma rays to radio waves. At X-ray and gamma ray energies above 30 keV,