Crab Nebula
E457107
The Crab Nebula is a famous supernova remnant and pulsar wind nebula in the constellation Taurus, formed by a stellar explosion observed on Earth in 1054 AD.
Observed surface forms (1)
| Surface form | Occurrences |
|---|---|
| Crab Pulsar | 0 |
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical object
ⓘ
emission nebula ⓘ pulsar ⓘ pulsar wind nebula ⓘ supernova remnant ⓘ |
| alsoKnownAs |
M1
NERFINISHED
ⓘ
Messier 1 NERFINISHED ⓘ NGC 1952 NERFINISHED ⓘ |
| associatedWithHistoricalRecord | guest star of 1054 ⓘ |
| cataloguedBy | Charles Messier NERFINISHED ⓘ |
| contains | Crab Pulsar NERFINISHED ⓘ |
| discoveredBy | John Bevis NERFINISHED ⓘ |
| discoveryYear | 1731 ⓘ |
| emits |
X-rays
ⓘ
gamma rays ⓘ optical radiation ⓘ radio waves ⓘ synchrotron radiation ⓘ |
| expandsAtSpeed | about 1500 km/s ⓘ |
| hasAngularSize | about 7 arcminutes by 5 arcminutes ⓘ |
| hasApparentMagnitude | 8.4 ⓘ |
| hasApproximateDistance |
2 kiloparsecs
ⓘ
6500 light-years ⓘ |
| hasCentralObject | Crab Pulsar NERFINISHED ⓘ |
| hasDeclination | +22° 01′ ⓘ |
| hasDesignation | PSR B0531+21 NERFINISHED ⓘ |
| hasDiameter | about 11 light-years ⓘ |
| hasGalacticLatitude | -5.78 degrees ⓘ |
| hasGalacticLongitude | 184.56 degrees ⓘ |
| hasRightAscension | 05h 34m ⓘ |
| hasRotationPeriod | about 33 milliseconds ⓘ |
| hasSpectralType | non-thermal synchrotron continuum with emission lines ⓘ |
| isInMilkyWay | true ⓘ |
| isPrototypeOf | pulsar wind nebulae ⓘ |
| locatedIn | Crab Nebula NERFINISHED ⓘ |
| locatedInConstellation | Taurus NERFINISHED ⓘ |
| messierNumber | 1 ⓘ |
| ngcNumber | 1952 ⓘ |
| originatedFrom | core-collapse supernova ⓘ |
| supernovaObservedBy |
Arab astronomers
ⓘ
Chinese astronomers ⓘ Japanese astronomers ⓘ |
| supernovaObservedFromEarthInYear | 1054 ⓘ |
| supernovaVisibleInDaylightFor | about 23 days ⓘ |
| supernovaVisibleToNakedEyeFor | about 2 years ⓘ |
| usedAsStandard |
X-ray astronomy flux calibrator
ⓘ
gamma-ray astronomy flux calibrator ⓘ |
| visibleWith | small telescope ⓘ |
| wasFormedByEvent | SN 1054 NERFINISHED ⓘ |
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.