Sharpless 2-190 (for associated nebula)
E480050
Sharpless 2-190 is a prominent emission nebula and active star-forming complex in the Milky Way, associated with the W4 region and shaped by massive young stars and their stellar winds.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Sharpless 2-190 (for associated nebula) canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4922131 — 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: Sharpless 2-190 (for associated nebula) Context triple: [W4 star-forming region, catalogDesignation, Sharpless 2-190 (for associated nebula)]
-
A.
Sharpless 2-275
Sharpless 2-275 is a large, circular emission nebula in the constellation Monoceros, notable for its active star-forming region and striking rose-like appearance.
-
B.
NGC 2023 reflection nebula
NGC 2023 is a bright reflection nebula in the constellation Orion, illuminated by a young B-type star and noted for its complex dust structures and role in studies of star formation.
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C.
Vela OB2 association
Vela OB2 association is a nearby, young stellar grouping in the constellation Vela, rich in massive, hot stars and active star formation.
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D.
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.
-
E.
S106 nebula
S106 nebula is a bipolar emission nebula and active star-forming region in the constellation Cygnus, illuminated by a massive young central star.
- 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: Sharpless 2-190 (for associated nebula) Target entity description: Sharpless 2-190 is a prominent emission nebula and active star-forming complex in the Milky Way, associated with the W4 region and shaped by massive young stars and their stellar winds.
-
A.
Sharpless 2-275
Sharpless 2-275 is a large, circular emission nebula in the constellation Monoceros, notable for its active star-forming region and striking rose-like appearance.
-
B.
NGC 2023 reflection nebula
NGC 2023 is a bright reflection nebula in the constellation Orion, illuminated by a young B-type star and noted for its complex dust structures and role in studies of star formation.
-
C.
Vela OB2 association
Vela OB2 association is a nearby, young stellar grouping in the constellation Vela, rich in massive, hot stars and active star formation.
-
D.
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.
-
E.
S106 nebula
S106 nebula is a bipolar emission nebula and active star-forming region in the constellation Cygnus, illuminated by a massive young central star.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
H II region
ⓘ
astronomical object ⓘ emission nebula ⓘ interstellar cloud ⓘ star-forming region ⓘ |
| associatedWith |
Heart Nebula complex
NERFINISHED
ⓘ
IC 1805 region NERFINISHED ⓘ W4 bubble ⓘ |
| catalog | Sharpless catalog of H II regions NERFINISHED ⓘ |
| catalogNumber | Sh 2-190 NERFINISHED ⓘ |
| contains |
dust lanes
ⓘ
embedded star clusters ⓘ ionized gas ⓘ molecular clouds ⓘ young stellar objects ⓘ |
| distanceEstimate | several kiloparsecs from the Sun ⓘ |
| drivenBy | OB association ⓘ |
| emits |
H-alpha line radiation
ⓘ
infrared radiation ⓘ radio continuum emission ⓘ |
| environment |
giant H II region
ⓘ
massive star-forming complex ⓘ |
| hasMedium |
interstellar dust
ⓘ
ionized hydrogen gas ⓘ |
| hasPhysicalProcess |
feedback from OB stars
ⓘ
massive star formation ⓘ photoionization ⓘ stellar wind driven bubble expansion ⓘ |
| hasRole | tracer of recent star formation in the Milky Way ⓘ |
| hasStructure |
cavity created by stellar winds
ⓘ
filamentary emission regions ⓘ shell of ionized gas ⓘ |
| isInfluencedBy |
massive O-type stars
ⓘ
stellar feedback ⓘ |
| isRegionOf | ongoing star formation ⓘ |
| locatedIn |
Milky Way
ⓘ
Perseus Arm NERFINISHED ⓘ |
| namedAfter | Stewart Sharpless NERFINISHED ⓘ |
| observedIn |
infrared wavelengths
ⓘ
optical wavelengths ⓘ radio wavelengths ⓘ |
| partOf |
W3/W4/W5 complex
NERFINISHED
ⓘ
W4 region ⓘ |
| scientificInterest | laboratory for studying triggered star formation ⓘ |
| shapedBy |
ionizing radiation
ⓘ
massive young stars ⓘ stellar winds ⓘ |
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: Sharpless 2-190 (for associated nebula) Description of subject: Sharpless 2-190 is a prominent emission nebula and active star-forming complex in the Milky Way, associated with the W4 region and shaped by massive young stars and their stellar winds.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.