Heart Nebula

E494853
H II region emission nebula

The Heart Nebula is a vast emission nebula in the constellation Cassiopeia, known for its heart-like shape and active star-forming regions.

Try in SPARQL Jump to: Surface forms Statements Referenced by

Observed surface forms (2)

Surface form Occurrences
Soul Nebula 3
Heart and Soul Nebula complex 1

Statements (48)

Predicate Object
instanceOf H II region ⓘ
emission nebula ⓘ
alsoKnownAs IC 1805 NERFINISHED ⓘ
Sharpless 2-190 NERFINISHED ⓘ
angularSize about 150 arcminutes ⓘ
apparentMagnitudeV about 6.5 ⓘ
associatedWith W4 H II region NERFINISHED ⓘ
bestSeenFrom dark skies ⓘ
bestSeenIn autumn in the Northern Hemisphere ⓘ
catalog IC ⓘ
catalogNumber IC 1805 NERFINISHED ⓘ
celestialHemisphere Northern sky ⓘ
color reddish ⓘ
contains dark dust lanes ⓘ
ionized hydrogen gas ⓘ
massive young stellar objects ⓘ
open cluster Melotte 15 NERFINISHED ⓘ
pillars of gas and dust ⓘ
stellar winds carved cavities ⓘ
young massive stars ⓘ
declination +61° 27′ ⓘ
discovery discovered in the 19th century ⓘ
distanceFromEarth about 2,300 parsecs ⓘ
about 7,500 light-years ⓘ
dominantEmissionLine H-alpha ⓘ
gasComposition helium ⓘ
primarily hydrogen ⓘ
trace heavier elements ⓘ
hasMorphology bright rims around cavities ⓘ
filamentary structures ⓘ
hasStarFormation ongoing ⓘ
ionizationSource hot B-type stars ⓘ
hot O-type stars ⓘ
isTargetFor amateur astronomers ⓘ
professional astronomers ⓘ
locatedIn Milky Way ⓘ
Perseus Arm NERFINISHED ⓘ
locatedInConstellation Cassiopeia NERFINISHED ⓘ
near Soul Nebula NERFINISHED ⓘ
observedWith astrophotography equipment ⓘ
wide-field telescopes ⓘ
partOf Cassiopeia OB association NERFINISHED ⓘ
regionType massive star-forming complex ⓘ
requires narrowband filters for detailed imaging ⓘ
rightAscension 02h 32m ⓘ
shape heart-shaped ⓘ
sharplessNumber Sh2-190 NERFINISHED ⓘ
visibleWith small telescopes under dark skies ⓘ

Referenced by (7)

Full triples — surface form annotated when it differs from this entity's canonical label.

W4 star-forming region → associatedWith → Heart Nebula ⓘ
W5 star-forming region → associatedWith → Heart Nebula ⓘ
this entity surface form: Soul Nebula
IC 1805 (Heart Nebula) → alsoKnownAs → Heart Nebula ⓘ
subject surface form: IC 1805
IC 1805 (Heart Nebula) → associatedNebula → Heart Nebula ⓘ
subject surface form: IC 1805
this entity surface form: Soul Nebula
IC 1848 (Soul Nebula) → hasCommonName → Heart Nebula ⓘ
subject surface form: IC 1848
this entity surface form: Soul Nebula
IC 1848 (Soul Nebula) → near → Heart Nebula ⓘ
subject surface form: IC 1848
IC 1848 (Soul Nebula) → partOfComplex → Heart Nebula ⓘ
subject surface form: IC 1848
this entity surface form: Heart and Soul Nebula complex