NGC 281 (Pacman Nebula)
E109442
NGC 281, commonly known as the Pacman Nebula, is an emission nebula and active star-forming region in the constellation Cassiopeia, notable for its distinctive shape and embedded young star cluster IC 1590.
All labels observed (1)
| Label | Occurrences |
|---|---|
| NGC 281 (Pacman Nebula) canonical | 1 |
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
H II region
ⓘ
emission nebula ⓘ nebula ⓘ star-forming region ⓘ |
| alsoKnownAs | Pacman Nebula ⓘ |
| angularSize | ~35 arcminutes ⓘ |
| apparentMagnitudeV | 7.4 ⓘ |
| associatedWith | radio source W1 ⓘ |
| bestSeenInMonth | October ⓘ |
| bestSeenInSeason | northern autumn ⓘ |
| catalog | New General Catalogue ⓘ |
| contains |
Bok globules
ⓘ
dark dust lanes ⓘ molecular clouds ⓘ pre-main-sequence stars ⓘ young stellar objects ⓘ |
| declination | +56° 37′ ⓘ |
| discoveredBy | Edward Emerson Barnard ⓘ |
| discoveryYear | 1883 ⓘ |
| distanceFromEarth |
~2.9 kiloparsecs
ⓘ
~9500 light-years ⓘ |
| excitedBy | ultraviolet radiation from massive stars ⓘ |
| galacticLatitude | −6.31° ⓘ |
| galacticLongitude | 123.07° ⓘ |
| hasDominantEmissionLine |
H-alpha
ⓘ
[O III] ⓘ |
| hasEmbeddedStarCluster | IC 1590 ⓘ |
| hasMorphologicalType | emission nebula with dark lanes ⓘ |
| hasNebulaType | diffuse nebula ⓘ |
| hasOpenCluster | IC 1590 ⓘ |
| hasRegionDesignation |
IC 1848 (Soul Nebula)
ⓘ
surface form:
Sharpless 184
|
| hasStarFormationMode | triggered star formation ⓘ |
| ionizingSource | massive O-type stars in IC 1590 ⓘ |
| isIncludedInCatalogue |
H II regions
ⓘ
surface form:
Sharpless catalog of H II regions
|
| isInNorthernSky | true ⓘ |
| isTargetOf |
infrared surveys
ⓘ
radio observations of molecular gas ⓘ star formation studies ⓘ |
| locatedInConstellation | Cassiopeia ⓘ |
| notableFor |
active star formation
ⓘ
distinctive Pacman-like shape ⓘ |
| observedInWavelength |
infrared
ⓘ
optical ⓘ radio ⓘ |
| partOf | Perseus Spiral Arm ⓘ |
| rightAscension | 00h 52m ⓘ |
| visibleWith | small amateur telescopes under dark skies ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.