Statements (99)
| Predicate | Object |
|---|---|
| gptkbp:instance_of |
gptkb:nebula
|
| gptkbp:bfsLayer |
3
|
| gptkbp:bfsParent |
gptkb:automobile
|
| gptkbp:age |
about 950 years
|
| gptkbp:annual_event |
1054
|
| gptkbp:area |
approximately 6 light years
|
| gptkbp:associated_with |
gptkb:Taurus_constellation
|
| gptkbp:average_temperature |
about 10 million Kelvin
|
| gptkbp:body_style |
irregular
asymmetric structure |
| gptkbp:color |
blue and red
|
| gptkbp:composed_of |
gptkb:hydrogen
helium heavy elements |
| gptkbp:contains |
gptkb:pulsar_PSR_B0531+21
gptkb:Ninjutsu heavy elements like oxygen and iron |
| gptkbp:cultural_impact |
featured in documentaries
inspired art and literature subject of scientific studies |
| gptkbp:depicted_in |
northern hemisphere
with binoculars |
| gptkbp:discovered_by |
gptkb:John_Bevis
1731 |
| gptkbp:distance |
6500 light years
approximately 6,500 light years |
| gptkbp:emissions_standard |
non-thermal radiation
strong radio waves |
| gptkbp:exhibition |
gptkb:NGC_1952
gptkb:M1 |
| gptkbp:expansion_plans |
about 1,500 kilometers per second
1500 km/s |
| gptkbp:features |
X-ray emission
radio emission bright optical emission |
| gptkbp:first_appearance |
Chinese astronomers in 1054
|
| gptkbp:future_plans |
understanding of stellar evolution
potential for new discoveries investigation of cosmic phenomena |
| gptkbp:has_feature |
complex structure
|
| gptkbp:has_spectral_type |
gptkb:Type_II_supernova_remnant
|
| gptkbp:historical_significance |
Chinese records of supernova
|
| https://www.w3.org/2000/01/rdf-schema#label |
Crab Nebula
|
| gptkbp:image |
gptkb:1949
|
| gptkbp:is_a |
gptkb:pulsar_wind_nebula
iconic astronomical feature popular target for amateur astronomers historical astronomical object source of cosmic rays example of a bright astronomical object example of a celestial object example of a cosmic explosion remnant example of a cosmic structure example of a galactic object example of a high-energy astrophysical object example of a luminous object example of a nebula example of a nebular object example of a nebular remnant example of a neutron star remnant example of a remnant from a supernova explosion example of a stellar remnant important object for astrophysics object of scientific research site of ongoing stellar evolution source of high-energy particles source of infrared emissions source of optical emissions source of synchrotron radiation source of ultraviolet emissions |
| gptkbp:is_associated_with |
the supernova explosion of a massive star
|
| gptkbp:is_atype_of |
gptkb:nebula
|
| gptkbp:is_known_for |
its intricate filaments
|
| gptkbp:is_observed_in |
gptkb:Chandra_X-ray_Observatory
gptkb:Hubble_Space_Telescope gptkb:Fermi_Gamma-ray_Space_Telescope gamma-ray astronomy |
| gptkbp:is_part_of |
gptkb:Messier_1
gptkb:the_Crab_Pulsar_system gptkb:Milky_Way_galaxy |
| gptkbp:is_studied_in |
X-ray astronomy
radio astronomy optical astronomy |
| gptkbp:lighting |
magnitude 8.4
|
| gptkbp:located_in |
gptkb:Milky_Way
constellation Taurus |
| gptkbp:name |
gptkb:PSR_B0531+21
|
| gptkbp:notable_for |
first identified as a nebula
first identified as a supernova remnant first pulsar discovered in it |
| gptkbp:orbital_period |
33 milliseconds
|
| gptkbp:power_output |
high-energy gamma rays
|
| gptkbp:research_focus |
study of cosmic rays
study of neutron stars study of supernova explosions |
| gptkbp:size |
about 11 arcminutes across
approximately 11 light years across |
| gptkbp:type |
gptkb:nebula
|
| gptkbp:year_created |
1731
|