|
gptkbp:instance_of
|
gptkb:Nebula_Award
|
|
gptkbp:age
|
about 1,000 years
|
|
gptkbp:average_temperature
|
about 10 million K
|
|
gptkbp:composed_by
|
hydrogen, helium, and heavier elements
|
|
gptkbp:contains
|
gptkb:pulsar_PSR_B0531+21
|
|
gptkbp:diameter
|
approximately 11 light-years
|
|
gptkbp:discovered_by
|
1758
|
|
gptkbp:element
|
astrophysics research
|
|
gptkbp:founded_in
|
a supernova explosion
|
|
gptkbp:has_expansion_velocity
|
about 1,500 kilometers per second
|
|
gptkbp:has_function
|
complex filaments and knots
|
|
gptkbp:has_spectral_type
|
gptkb:Type_II_supernova_remnant
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
The Crab Nebula
|
|
gptkbp:is_approximately
|
6,500 light-years away from Earth
|
|
gptkbp:is_asequel_to
|
cosmic rays
gamma-ray emissions
|
|
gptkbp:is_associated_with
|
the historical supernova SN 1054
|
|
gptkbp:is_atype_of
|
gptkb:Nebula_Award
gptkb:region
gptkb:pulsar_wind_nebula
gptkb:medical_imaging
gptkb:Supernova
gptkb:interstellar_medium
gptkb:astronomy
gptkb:star
stellar nursery
galactic structure
astrophysical object
cosmic web
cosmic structure
diffuse nebula
X-ray nebula
nebular object
non-thermal source
optical nebula
pulsar nebula
radio nebula
supernova remnant nebula
supernova remnant region
|
|
gptkbp:is_known_for
|
its bright optical emission
|
|
gptkbp:is_located_in
|
gptkb:the_Milky_Way
|
|
gptkbp:is_observed_in
|
gptkb:Hubble_Space_Telescope
radio, optical, and X-ray wavelengths
|
|
gptkbp:is_part_of
|
gptkb:the_Crab_Pulsar_system
the Messier catalog
the Taurus constellation
the Crab Nebula complex
|
|
gptkbp:is_studied_for
|
its magnetic fields
its synchrotron radiation
|
|
gptkbp:is_studied_in
|
gptkb:astronomy
|
|
gptkbp:is_visible_from
|
gptkb:Earth
northern hemisphere
|
|
gptkbp:known_as
|
gptkb:Messier_1
|
|
gptkbp:lighting
|
magnitude 8.4
|
|
gptkbp:bfsParent
|
gptkb:Hubble_Space_Telescope
|
|
gptkbp:bfsLayer
|
4
|