The Crab Nebula is a nebula.
At the centre of the Crab Nebula is the neutron star - Crab pulsar.
Crab Nebula:Pulsar wind nebulaSupernova remnantRadius of 5.5 ly6,500 light years awayOrion Nebula:Diffuse nebulaStellar nurseryRadius of 12 ly1,244 light years awayEdit: M1, the Crab Nebula, is related to the death of a star. The Orion Nebula, M42, is relateted to the birth of stars.
The Crab Nebula was first observed in 1731.
"The Crab" is a nebula.
The crab nebula.
The crab nebula is estimated to be about 6,300 light year away.
The Crab Nebula or SN1054 is still visible with telescopes.
The crab nebula is the debris formed in the supernova explosion.
The star that created the Crab nebula exploded in the year 1054
The Crab Nebula is a supernova remnant and pulsar wind nebula.
The Crab Nebula was formed when it's host star exploded as a supernova [See related question]
A solar nebula is related to the formation of our Solar System, any other nebula is just a nebula.