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- Crab_Nebula abstract "The Crab Nebula (catalogue designations M1, NGC 1952, Taurus A) is a supernova remnant and pulsar wind nebula in the constellation of Taurus.Corresponding to a bright supernova recorded by Chinese astronomers in 1054, the nebula was observed later by English astronomer John Bevis in 1731. At an apparent magnitude of 8.4, comparable to that of the largest moon of Saturn, it is not visible to the naked eye but can be made out using binoculars under favourable conditions.At X-ray and gamma ray energies above 30 keV, the Crab is generally the strongest persistent source in the sky, with measured flux extending to above 10 TeV.Located at a distance of about 6,500 light-years (2 kpc) from Earth, the nebula has a diameter of 11 light years (3.4 pc, corresponding to an apparent diameter of some 7 arc minutes) and expands at a rate of about 1,500 kilometers per second (0.5% c). It is part of the Perseus Arm of the Milky Way galaxy.At the center of the nebula lies the Crab Pulsar, a neutron star 28–30 km across with a spin rate of 30.2 times per second, which emits pulses of radiation from gamma rays to radio waves. The nebula was the first astronomical object identified with a historical supernova explosion.The nebula acts as a source of radiation for studying celestial bodies that occult it. In the 1950s and 1960s, the Sun's corona was mapped from observations of the Crab's radio waves passing through it, and in 2003, the thickness of the atmosphere of Saturn's moon Titan was measured as it blocked out X-rays from the nebula.".
- Crab_Nebula thumbnail Crab_Nebula.jpg?width=300.
- Crab_Nebula wikiPageExternalLink 0052.
- Crab_Nebula wikiPageExternalLink crab.html.
- Crab_Nebula wikiPageExternalLink page1.htm.
- Crab_Nebula wikiPageExternalLink 22.
- Crab_Nebula wikiPageExternalLink M1.htm.
- Crab_Nebula wikiPageExternalLink crab-nebula-messier-1.
- Crab_Nebula wikiPageExternalLink COVILE_591.pdf.
- Crab_Nebula wikiPageExternalLink snrs.G184.6-5.8.html.
- Crab_Nebula wikiPageExternalLink m1_supernova_remnant.
- Crab_Nebula wikiPageExternalLink m001.html.
- Crab_Nebula wikiPageExternalLink m001_rosse.html.
- Crab_Nebula wikiPageExternalLink 1.
- Crab_Nebula wikiPageID "82780".
- Crab_Nebula wikiPageRevisionID "605635822".
- Crab_Nebula absmagV "−3.1 ± 0.5".
- Crab_Nebula appmagV "+8.4".
- Crab_Nebula caption "Hubble Space Telescope photograph".
- Crab_Nebula constellation Taurus_(constellation).
- Crab_Nebula distLy "6.5".
- Crab_Nebula epoch Epoch_(astronomy).
- Crab_Nebula hasPhotoCollection Crab_Nebula.
- Crab_Nebula name "Crab Nebula".
- Crab_Nebula names "Messier 1, NGC 1952, Sharpless 244".
- Crab_Nebula notes Optical_pulsar.
- Crab_Nebula radiusLy "~5.5 light year".
- Crab_Nebula sizeV "420".
- Crab_Nebula type Supernova_remnant.
- Crab_Nebula subject Category:Messier_objects.
- Crab_Nebula subject Category:NGC_objects.
- Crab_Nebula subject Category:Objects_within_10_kly_of_Earth.
- Crab_Nebula subject Category:Perseus_Arm.
- Crab_Nebula subject Category:Pulsar_wind_nebulae.
- Crab_Nebula subject Category:Sharpless_objects.
- Crab_Nebula subject Category:Supernova_remnants.
- Crab_Nebula subject Category:Taurus_(constellation).
- Crab_Nebula subject Category:Astronomical_objects_discovered_in_1731.
- Crab_Nebula type MessierObjects.
- Crab_Nebula type NGCObjects.
- Crab_Nebula type Object100002684.
- Crab_Nebula type PhysicalEntity100001930.
- Crab_Nebula type SharplessObjects.
- Crab_Nebula comment "The Crab Nebula (catalogue designations M1, NGC 1952, Taurus A) is a supernova remnant and pulsar wind nebula in the constellation of Taurus.Corresponding to a bright supernova recorded by Chinese astronomers in 1054, the nebula was observed later by English astronomer John Bevis in 1731.".
- Crab_Nebula label "Crab Nebula".
- Crab_Nebula label "Krabnevel".
- Crab_Nebula label "Krebsnebel".
- Crab_Nebula label "Mgławica Kraba".
- Crab_Nebula label "Nebulosa Granchio".
- Crab_Nebula label "Nebulosa del Cangrejo".
- Crab_Nebula label "Nebulosa do Caranguejo".
- Crab_Nebula label "Nébuleuse du Crabe".
- Crab_Nebula label "Крабовидная туманность".
- Crab_Nebula label "سديم السرطان".
- Crab_Nebula label "かに星雲".
- Crab_Nebula label "蟹狀星雲".
- Crab_Nebula sameAs Krabí_mlhovina.
- Crab_Nebula sameAs Krebsnebel.
- Crab_Nebula sameAs Νεφέλωμα_του_Καρκίνου.
- Crab_Nebula sameAs Nebulosa_del_Cangrejo.
- Crab_Nebula sameAs Karramarroaren_nebulosa.
- Crab_Nebula sameAs Nébuleuse_du_Crabe.
- Crab_Nebula sameAs Nebula_Kepiting.
- Crab_Nebula sameAs Nebulosa_Granchio.
- Crab_Nebula sameAs かに星雲.
- Crab_Nebula sameAs 게_성운.
- Crab_Nebula sameAs Krabnevel.
- Crab_Nebula sameAs Mgławica_Kraba.
- Crab_Nebula sameAs Nebulosa_do_Caranguejo.
- Crab_Nebula sameAs m.0l6tq.
- Crab_Nebula sameAs Q10934.
- Crab_Nebula sameAs Q10934.
- Crab_Nebula sameAs Crab_Nebula.
- Crab_Nebula wasDerivedFrom Crab_Nebula?oldid=605635822.
- Crab_Nebula depiction Crab_Nebula.jpg.
- Crab_Nebula isPrimaryTopicOf Crab_Nebula.
