Astronomy   View all facts   Glossary   Help
physical object > natural object > celestial body > Messier object > Crab Nebula
Next Messier object: Dumbbell Nebula    Up: Messier object, supernova remnant    Previous Messier object: Andromeda galaxy   

Crab Nebula
(M 1, Taurus A, 2U 0531+22)
subjectfact 
Crab Nebulais a part of Taurus2001-09-27 09:30:17.0
has age 947 yearshas current date: 2001, 2001-09-27 09:30:17.0
has Messier number 12001-09-27 09:30:18.0
has explosion date 1054 A.D.has source: Croswell, K. 1995 The Alchemy of the Heavens, Anchor Books, 2001-09-27 09:30:17.0
has distance 2 kpchas source: Hopkins, J. 1976 Glossary of Astronomy and Astrophysics, University of Chicago Press, 2001-09-27 09:30:17.0
has synonym M 12001-09-27 09:30:17.0
has synonym Taurus Ahas source: Hopkins, J. 1976 Glossary of Astronomy and Astrophysics, University of Chicago Press, has catalog: Radio source, 2001-09-27 09:30:17.0
has synonym 2U 0531+22has source: Hopkins, J. 1976 Glossary of Astronomy and Astrophysics, University of Chicago Press, 2001-09-27 09:30:17.0
has image has URL: http://oposite.stsci.edu/pubinfo/PR/1996/22.html, has URL: http://oposite.stsci.edu/pubinfo/PR/2000/15, has URL: http://oposite.stsci.edu/pubinfo/PR/96/22.html, 2001-09-27 09:30:17.0
has definition A supernova remnant.has source: Croswell, K. 1995 The Alchemy of the Heavens, Anchor Books, 2001-09-27 09:30:17.0
has definition A chaotic, expanding mass of gas in Taurus, the remnant of a Type I supernova whose light reached Earth in 1054. It is an intense radio source, and its visible light is strongly polarized. It is also a source of X-rays and gamma-rays. Its total mass is about 1 Msun, but the total energy radiated by the Crab is 1037-1038 ergs s-1. It is periodically occulted by the Moon, and every June its radio spectrum is occulted by the solar corona.has source: Hopkins, J. 1976 Glossary of Astronomy and Astrophysics, University of Chicago Press, 2001-09-27 09:30:17.0
is an instance of supernova remnant2001-09-27 09:30:17.0
is an instance of Messier object2001-09-27 09:30:17.0
Messier objecthas apparent dimension2001-09-27 09:30:24.0
has apparent magnitude2001-09-27 09:30:24.0
is a part of celestial sphere2001-09-27 09:30:24.0
has catalog Messier catalog2001-09-27 09:30:24.0
has purpose originally to catalog all objects which could be confused with a comet2001-09-27 09:30:24.0
supernova remnanthas ejection velocity 10000 km s-12001-09-27 09:30:12.0
produces synchrotron radiation2001-09-27 09:30:12.0
has acronym SNR2001-09-27 09:30:12.0
celestial bodyhas spectra2001-09-27 09:30:09.0
radio sourcehas wavelength radio2001-09-27 09:30:21.0
is a part of celestial sphere2001-09-27 09:30:21.0
expanding emission nebulahas composition enhanced with heavy elements relative to the interstellar medium2001-09-27 09:30:11.0
has progenitor star2001-09-27 09:30:11.0
has expansion velocity2001-09-27 09:30:11.0
physical objecthas location or center of gravity2001-09-27 09:27:27.0
has angular momentum2001-09-27 09:27:27.0
has mass2001-09-27 09:27:27.0
has velocity2001-09-27 09:27:27.0
has momentum2001-09-27 09:27:27.0
has temperature2001-09-27 09:27:27.0
has volume2001-09-27 09:27:27.0
has extent2001-09-27 09:27:27.0
has material2001-09-27 09:27:27.0
nebulais a part of gas2001-09-27 09:32:19.0

Next Messier object: Dumbbell Nebula    Up: Messier object, supernova remnant    Previous Messier object: Andromeda galaxy