Crab Nebula

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Crab Nebula
Supernova remnant
Crab Nebula.jpg
Hubble Space Telescope mosaic image assembled frae 24 individual Wide Field and Planetary Camera 2 exposurs taken in October 1999, Januar 2000, an December 2000
Observation data: J2000.0 epoch
Richt ascension 05h 34m 31.94s[1]
Declination +22° 00′ 52.2″[1]
Distance 6500±1600 ly   (2000±500[2] pc)
Apparent magnitude (V) +8.4
Apparent dimensions (V) 420″ × 290″[3][b]
Constellation Taurus
Physical characteristics
Radius ~5.5 ly   (~1.7[4] pc)
Absolute magnitude (V) −3.1±0.5[c]
Notable featurs Optical pulsar
Designations Messier 1, NGC 1952, Taurus A, Sh2-244[1]
See also: Leets o nebulae

The Crab Nebula (catalogue designations M1, NGC 1952, Taurus A) is a supernova remnant an pulsar wind nebula in the constellation o Taurus.[5] Correspondin tae a bright supernova recordit bi Cheenese astronomers in 1054, the nebula wis observed later bi Inglis astronomer John Bevis in 1731. At an apparent magnitude o 8.4, comparable tae that o the lairgest muin o Saturn, it is nae veesible tae the naked ee but can be made oot uisin binoculars unner favourable condeetions.

References[eedit | eedit soorce]

  1. 1.0 1.1 1.2 "M 1 – SuperNova Remnant". SIMBAD. Observatory of Strasbourg. Retrieved 12 Februar 2012. 
  2. Kaplan, David L.; Chatterjee, S.; Gaensler, B. M.; Anderson, J. (2008). "A Precise Proper Motion for the Crab Pulsar, and the Difficulty of Testing Spin-Kick Alignment for Young Neutron Stars". The Astrophysical Journal. 677 (2): 1201–1215. arXiv:0801.1142. Bibcode:2008ApJ...677.1201K. doi:10.1086/529026. 
  3. Trimble, Virginia Louise (1973). "The Distance to the Crab Nebula and NP 0532". Publications of the Astronomical Society of the Pacific. 85 (507): 579. Bibcode:1973PASP...85..579T. doi:10.1086/129507. JSTOR 40675440. 
  4. Hester, J. J. (2008). "The Crab Nebula: An Astrophysical Chimera". Annual Review of Astronomy and Astrophysics. 46: 127–155. Bibcode:2008ARA&A..46..127H. doi:10.1146/annurev.astro.45.051806.110608. 
  5. an nae, as its name micht suggest, in Cancer. The nou-current name is due tae William Parsons, 3rd Earl o Rosse who observed the object in 1840 uisin a 36-inch telescope an produced a drawin that leuked somewhit lik a crab. The drawin wis published in Observations on Some of the Nebulae, Philosophical Transactions of the Royal Society of London vol. 134 (1844), fig. 81 (plate xviii, p. 321)