IC 1848 (Soul Nebula)
E122803
IC 1848, commonly known as the Soul Nebula, is a large emission nebula and star-forming region in the constellation Cassiopeia, often photographed together with the nearby Heart Nebula.
All labels observed (3)
| Label | Occurrences |
|---|---|
| IC 1848 (Soul Nebula) canonical | 1 |
| IC 1848 region | 1 |
| Sharpless 184 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T934097 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: IC 1848 (Soul Nebula) Context triple: [Perseus Arm, contains, IC 1848 (Soul Nebula)]
-
A.
IC 1805 (Heart Nebula)
IC 1805, commonly known as the Heart Nebula, is a large, bright emission nebula and star-forming region in the constellation Cassiopeia, notable for its heart-shaped appearance in astrophotography.
-
B.
Rosette Nebula
The Rosette Nebula is a large, circular emission nebula and active star-forming region located in the Milky Way, notable for its striking rose-like appearance in astrophotography.
-
C.
IC 10
IC 10 is a nearby irregular starburst galaxy notable for its intense star formation and membership in the Local Group.
-
D.
Eagle Nebula
The Eagle Nebula is a famous star-forming region in the Milky Way best known for the "Pillars of Creation," towering columns of gas and dust captured in iconic Hubble Space Telescope images.
-
E.
Carina Nebula
The Carina Nebula is a vast, active star-forming region in the Milky Way known for its towering gas and dust pillars and dramatic young stellar clusters.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: IC 1848 (Soul Nebula) Target entity description: IC 1848, commonly known as the Soul Nebula, is a large emission nebula and star-forming region in the constellation Cassiopeia, often photographed together with the nearby Heart Nebula.
-
A.
IC 1805 (Heart Nebula)
IC 1805, commonly known as the Heart Nebula, is a large, bright emission nebula and star-forming region in the constellation Cassiopeia, notable for its heart-shaped appearance in astrophotography.
-
B.
Rosette Nebula
The Rosette Nebula is a large, circular emission nebula and active star-forming region located in the Milky Way, notable for its striking rose-like appearance in astrophotography.
-
C.
IC 10
IC 10 is a nearby irregular starburst galaxy notable for its intense star formation and membership in the Local Group.
-
D.
Eagle Nebula
The Eagle Nebula is a famous star-forming region in the Milky Way best known for the "Pillars of Creation," towering columns of gas and dust captured in iconic Hubble Space Telescope images.
-
E.
Carina Nebula
The Carina Nebula is a vast, active star-forming region in the Milky Way known for its towering gas and dust pillars and dramatic young stellar clusters.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
H II region
ⓘ
astronomical object ⓘ emission nebula ⓘ star-forming region ⓘ |
| angularSize | approximately 150 arcminutes ⓘ |
| associatedWith |
open cluster IC 1848
ⓘ
W5 star-forming region ⓘ
surface form:
radio source W5
|
| bestObservedIn |
autumn
ⓘ
winter ⓘ |
| bestSeenFrom | mid-northern latitudes ⓘ |
| catalog | Index Catalogue ⓘ |
| contains |
dark dust lanes
ⓘ
embedded young stellar objects ⓘ emission filaments ⓘ molecular clouds ⓘ photodissociation regions ⓘ star-forming pillars ⓘ young massive stars ⓘ |
| discoveredIn | 19th century ⓘ |
| distanceFromEarth |
about 2 kiloparsecs
ⓘ
about 6500 light-years ⓘ |
| dominantEmissionLine | H-alpha ⓘ |
| hasAlternativeDesignation | W5 ⓘ |
| hasApparentMagnitude | about 6.5 (integrated, diffuse) ⓘ |
| hasColor | predominantly red in visible light ⓘ |
| hasCommonName |
Heart Nebula
ⓘ
surface form:
Soul Nebula
|
| hasFeature |
bright ionization fronts
ⓘ
elephant trunk structures ⓘ large cavities carved by stellar winds ⓘ |
| hasMorphology | complex, irregular shape ⓘ |
| hasStarFormationActivity | ongoing ⓘ |
| hasType | diffuse nebula ⓘ |
| includedIn | IC II (second Index Catalogue) ⓘ |
| ionizedBy | ultraviolet radiation from young stars ⓘ |
| isPartOf | Milky Way ⓘ |
| locatedIn |
Perseus Arm
ⓘ
northern celestial hemisphere ⓘ |
| locatedInConstellation | Cassiopeia ⓘ |
| near | Heart Nebula ⓘ |
| observedIn |
infrared wavelengths
ⓘ
optical wavelengths ⓘ radio wavelengths ⓘ |
| oftenImagedWith | IC 1805 ⓘ |
| partOfComplex |
Heart Nebula
ⓘ
surface form:
Heart and Soul Nebula complex
|
| popularFor | wide-field astrophotography ⓘ |
| regionType | massive star-forming complex ⓘ |
| requires | long-exposure astrophotography for detailed imaging ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: IC 1848 (Soul Nebula) Description of subject: IC 1848, commonly known as the Soul Nebula, is a large emission nebula and star-forming region in the constellation Cassiopeia, often photographed together with the nearby Heart Nebula.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
NGC 281
this entity surface form:
Sharpless 184
this entity surface form:
IC 1848 region