Orion Nebula Cluster
E514712
The Orion Nebula Cluster is a dense, young star cluster embedded within the Orion Nebula, notable as one of the nearest and most studied regions of active star formation.
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
embedded cluster
ⓘ
open star cluster ⓘ young stellar cluster ⓘ |
| age | about 1 million years ⓘ |
| ageRange | less than 3 million years ⓘ |
| alsoKnownAs |
ONC
NERFINISHED
ⓘ
Trapezium Cluster NERFINISHED ⓘ |
| centralStarsDesignation | Theta1 Orionis NERFINISHED ⓘ |
| containsApproximateNumberOfStars |
about 2000
ⓘ
between 2000 and 4000 ⓘ |
| containsObject |
B-type stars
ⓘ
Herbig–Haro objects NERFINISHED ⓘ T Tauri stars NERFINISHED ⓘ Trapezium stars NERFINISHED ⓘ brown dwarfs ⓘ dust ⓘ ionized gas ⓘ massive O-type stars ⓘ molecular gas ⓘ protoplanetary disks ⓘ |
| distanceFromEarth |
about 1350 light-years
ⓘ
about 414 parsecs ⓘ |
| hasAngularSize | about 20 arcminutes ⓘ |
| hasCoreRegion | Trapezium NERFINISHED ⓘ |
| hasInitialMassFunction | well-studied initial mass function ⓘ |
| hasMass | several thousand solar masses ⓘ |
| hasProperty |
contains many pre-main-sequence stars
ⓘ
mass-segregated ⓘ rich in circumstellar disks ⓘ strong nebular emission ⓘ |
| hasStellarDensity | high central stellar density ⓘ |
| ionizedBy | Theta1 Orionis C NERFINISHED ⓘ |
| isEmbeddedIn |
H II region
ⓘ
giant molecular cloud ⓘ |
| isOneOf |
best-studied young clusters
ⓘ
nearest massive star-forming regions to Earth ⓘ |
| isRegionOf | active star formation ⓘ |
| locatedIn |
Orion Molecular Cloud Complex
NERFINISHED
ⓘ
Orion Nebula NERFINISHED ⓘ |
| locatedInConstellation | Orion NERFINISHED ⓘ |
| observedBy |
Chandra X-ray Observatory
NERFINISHED
ⓘ
Hubble Space Telescope NERFINISHED ⓘ Spitzer Space Telescope NERFINISHED ⓘ Very Large Telescope NERFINISHED ⓘ |
| observedInWavelength |
X-ray
ⓘ
infrared ⓘ optical ⓘ |
| partOf | Orion A molecular cloud NERFINISHED ⓘ |
| usedAs |
benchmark for pre-main-sequence evolution models
ⓘ
laboratory for star formation studies ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.