The earliest recorded documentation of observation of astronomical object SN 1054 was as it was occurring in 1054, by Chinese astrononomers … 展开

At the center of the Crab Nebula are two faint stars, one of which is the star responsible for the existence of the nebula. It was identified as … 展开

The Crab Nebula lies roughly 1.5 degrees away from the ecliptic—the plane of Earth's orbit around the Sun. This means that the Moon—and occasionally, planets—can 展开

1. Size as measured on a very deep plate taken by Sidney van den Bergh in late 1969.
2. Apparent magnitude of 8.4—distance modulus of 11.5±0.5 = −3.1±0.5
3. distance × tan ( diameter_angle = 420″ ) = 4.1±1.0 pc diameter = … 展开

In visible light, the Crab Nebula consists of a broadly oval-shaped mass of filaments, about 6 arcminutes long and 4 arcminutes wide (by comparison, the full moon is 30 arcminutes across) … 展开

The star that exploded as a supernova is referred to as the supernova's progenitor star. Two types of stars explode as supernovae: 展开

• Lists of nebulae
• List of Messier objects
• Southern Crab Nebula, so named for its resemblance to the Crab Nebula, but visible from the southern hemisphere
• Galactic anticenter 展开