planetary nebula NGC 6210
E922162
Planetary nebula NGC 6210 is a bright, compact, and irregularly shaped planetary nebula located in the constellation Hercules, notable for its complex structure and strong emission lines.
All labels observed (1)
| Label | Occurrences |
|---|---|
| planetary nebula NGC 6210 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11376975 — 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: planetary nebula NGC 6210 Context triple: [Hercules, contains, planetary nebula NGC 6210]
-
A.
Blue Planetary Nebula
The Blue Planetary Nebula is a striking, blue-hued planetary nebula located in the constellation Centaurus, formed from the ionized gas ejected by a dying star.
-
B.
Ring Nebula
The Ring Nebula is a famous planetary nebula in the constellation Lyra, known for its bright, ring-shaped shell of ionized gas surrounding a hot central white dwarf.
-
C.
reflection nebula NGC 6726
Reflection nebula NGC 6726 is a bright, blue-tinged cloud of dust and gas illuminated by nearby young stars in the Corona Australis star-forming region.
-
D.
NGC 3132
NGC 3132 is a bright, elliptical planetary nebula in the constellation Vela, noted for its striking ring-like appearance and complex internal structure.
-
E.
Cone Nebula
The Cone Nebula is a striking, cone-shaped dark nebula and star-forming region located within the constellation Monoceros, known for its dramatic appearance in astrophotography.
- 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: planetary nebula NGC 6210 Target entity description: Planetary nebula NGC 6210 is a bright, compact, and irregularly shaped planetary nebula located in the constellation Hercules, notable for its complex structure and strong emission lines.
-
A.
Blue Planetary Nebula
The Blue Planetary Nebula is a striking, blue-hued planetary nebula located in the constellation Centaurus, formed from the ionized gas ejected by a dying star.
-
B.
Ring Nebula
The Ring Nebula is a famous planetary nebula in the constellation Lyra, known for its bright, ring-shaped shell of ionized gas surrounding a hot central white dwarf.
-
C.
reflection nebula NGC 6726
Reflection nebula NGC 6726 is a bright, blue-tinged cloud of dust and gas illuminated by nearby young stars in the Corona Australis star-forming region.
-
D.
NGC 3132
NGC 3132 is a bright, elliptical planetary nebula in the constellation Vela, noted for its striking ring-like appearance and complex internal structure.
-
E.
Cone Nebula
The Cone Nebula is a striking, cone-shaped dark nebula and star-forming region located within the constellation Monoceros, known for its dramatic appearance in astrophotography.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
emission nebula
ⓘ
planetary nebula ⓘ |
| angularSize | ~0.33 arcminutes ⓘ |
| apparentMagnitude | ~8.8 ⓘ |
| bestSeenFrom | Northern Hemisphere NERFINISHED ⓘ |
| bestViewingSeason | northern summer ⓘ |
| catalog | NGC NERFINISHED ⓘ |
| centralStar | hot white dwarf ⓘ |
| centralStarEffectiveTemperature | > 50,000 K (approx) ⓘ |
| constellation | Hercules NERFINISHED ⓘ |
| declination | +23° 47′ 59″ (approx) ⓘ |
| discoveredBy | Friedrich Georg Wilhelm Struve NERFINISHED ⓘ |
| discoveryMethod | telescopic observation ⓘ |
| discoveryYear | 1825 ⓘ |
| distanceFromEarth |
~2 kiloparsecs (approx)
ⓘ
~6500 light-years (approx) ⓘ |
| evolutionaryStage | late stage of low- to intermediate-mass star ⓘ |
| formationMechanism | ejected outer layers of dying star ⓘ |
| galacticLatitude | +37.7° (approx) ⓘ |
| galacticLongitude | 43.1° (approx) ⓘ |
| hemisphere | northern sky ⓘ |
| ionizationSource | ultraviolet radiation from central star ⓘ |
| locatedIn | Milky Way ⓘ |
| morphology |
compact
ⓘ
complex structure ⓘ irregular ⓘ |
| notableFeature |
bright inner shell
ⓘ
fainter outer envelope ⓘ strong emission lines ⓘ |
| observationalClass | bright planetary nebula ⓘ |
| observedIn |
optical wavelengths
ⓘ
radio wavelengths ⓘ ultraviolet wavelengths ⓘ |
| otherDesignation |
BD+23 2983 (central star)
NERFINISHED
ⓘ
PK 43+37.1 NERFINISHED ⓘ PNG 043.1+37.7 NERFINISHED ⓘ |
| rightAscension | 16h 44m 29s (approx) ⓘ |
| spectralLine |
H-alpha
ⓘ
He II ⓘ [O III] 5007 Å ⓘ |
| spectralType | strong [O III] emission ⓘ |
| structure |
filaments and knots
ⓘ
inner bright elliptical shell ⓘ outer irregular halo ⓘ |
| surfaceBrightness | high ⓘ |
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: planetary nebula NGC 6210 Description of subject: Planetary nebula NGC 6210 is a bright, compact, and irregularly shaped planetary nebula located in the constellation Hercules, notable for its complex structure and strong emission lines.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.