Pacman Nebula
E489843
The Pacman Nebula is a bright emission nebula in the constellation Cassiopeia, notable for its star-forming regions and distinctive shape that resembles the classic video game character Pac-Man.
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
H II region
ⓘ
astronomical object ⓘ emission nebula ⓘ star-forming region ⓘ |
| alsoKnownAs |
IC 11
NERFINISHED
ⓘ
NGC 281 NERFINISHED ⓘ Sh2-184 NERFINISHED ⓘ |
| angularSize | about 35 arcminutes ⓘ |
| apparentMagnitudeV | 7.4 ⓘ |
| bestSeenInMonth | October ⓘ |
| bestSeenInSeason | Northern autumn ⓘ |
| catalog | New General Catalogue NERFINISHED ⓘ |
| catalogNumber | NGC 281 NERFINISHED ⓘ |
| celestialHemisphere | Northern celestial hemisphere ⓘ |
| contains |
Bok globules
ⓘ
dark dust lanes ⓘ massive OB stars ⓘ molecular clouds ⓘ open cluster IC 1590 NERFINISHED ⓘ young stellar objects ⓘ |
| coordinateSystem | equatorial coordinate system ⓘ |
| declination | +56° 37′ ⓘ |
| discoveredBy | Edward Emerson Barnard NERFINISHED ⓘ |
| discoveryYear | 1883 ⓘ |
| distanceFromEarth |
approximately 2.8 kiloparsecs
ⓘ
approximately 9,200 light-years ⓘ |
| emits |
hydrogen-alpha radiation
ⓘ
oxygen [O III] emission ⓘ sulfur [S II] emission ⓘ |
| hasFeature |
bright ionization front
ⓘ
embedded young star cluster ⓘ pillars of gas and dust ⓘ |
| imagedBy |
Chandra X-ray Observatory
NERFINISHED
ⓘ
Hubble Space Telescope NERFINISHED ⓘ Spitzer Space Telescope NERFINISHED ⓘ |
| ionizedBy | massive stars in IC 1590 ⓘ |
| locatedIn |
Milky Way
ⓘ
Perseus Arm NERFINISHED ⓘ |
| locatedInConstellation | Cassiopeia NERFINISHED ⓘ |
| namedAfter | Pac-Man video game character ⓘ |
| notableFor |
active star formation
ⓘ
distinctive Pac-Man-like shape ⓘ |
| observedIn |
infrared wavelengths
ⓘ
optical wavelengths ⓘ radio wavelengths ⓘ |
| partOf | Perseus spiral arm star-forming complex NERFINISHED ⓘ |
| rightAscension | 00h 52m ⓘ |
| spectralType | H-alpha emission ⓘ |
| visibleFrom | mid-northern latitudes ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
NGC 281