Crab Nebula:
Chandra Discovers X-Ray Ring Around Cosmic Powerhouse in Crab Nebula

The Crab Nebula is the remnant of a supernova explosion that was seen on Earth in 1054 AD. It is 6000 light years from Earth. At the center of the bright nebula is a rapidly spinning neutron star, or pulsar that emits pulses of radiation 30 times a second.

Multi-wavelength Images: (*Images not to scale)
X-ray NASA/CXC/SAO Jpg (133 k) Tiff (3.9 MB) PS (3.4 MB)	Optical Palomar Obs.: Jpg (93 k) Tif (3.6 MB) PS (495 k)	Infrared 2MASS/UMass/IPAC- Caltech/NASA/NSF: Jpg (231 k) Tif (18.7 MB) PS (3.5 MB)	Radio NRAO/AUI/NSF: Jpg (42 k) Tif (1.7 MB) PS (3.6 MB)

Fast Facts for Crab Nebula: Credit  NASA/CXC/SAO Scale  Image is 2.5 arcmin across. Category  Supernovas & Supernova Remnants, Neutron Stars/X-ray Binaries Coordinates (J2000)  RA 05h 34m 32s | Dec +22° 0.0' 52" Constellation  Taurus Observation Dates  August 29, 1999 Observation Time  1 hours Obs. IDs  168 Color Code  Intensity (Chandra: 0.3-3keV bandwidth) Instrument  ACIS Distance Estimate  6,000 light years Release Date  September 28, 1999