M16
E472705
M16, also known as the Eagle Nebula, is a famous star-forming region in the constellation Serpens, best known for the "Pillars of Creation" captured by the Hubble Space Telescope.
All labels observed (1)
| Label | Occurrences |
|---|---|
| M16 canonical | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T4835200 — 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: M16 Context triple: [Eagle Nebula, alsoKnownAs, M16]
-
A.
M16
M16 is a Formula One racing car chassis developed and used by the Midland F1 Racing team in Grand Prix competition.
-
B.
M16
M16 is the Osaka Metro station code assigned to Umeda Station on the Midosuji Line in Osaka, Japan.
-
C.
M60
M60 is a major orbital motorway encircling the city of Manchester in Greater Manchester, England.
-
D.
M61
M61 is a major motorway in North West England connecting Manchester with Preston and linking into the wider UK motorway network.
-
E.
M6
The M6 is a major north–south motorway in the United Kingdom that runs through the Midlands and North West England, forming a key part of the country’s strategic road network.
- 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: M16 Target entity description: M16, also known as the Eagle Nebula, is a famous star-forming region in the constellation Serpens, best known for the "Pillars of Creation" captured by the Hubble Space Telescope.
-
A.
M16
M16 is the Osaka Metro station code assigned to Umeda Station on the Midosuji Line in Osaka, Japan.
-
B.
M16
M16 is a Formula One racing car chassis developed and used by the Midland F1 Racing team in Grand Prix competition.
-
C.
M60
M60 is a major orbital motorway encircling the city of Manchester in Greater Manchester, England.
-
D.
M61
M61 is a major motorway in North West England connecting Manchester with Preston and linking into the wider UK motorway network.
-
E.
M6
The M6 is a major north–south motorway in the United Kingdom that runs through the Midlands and North West England, forming a key part of the country’s strategic road network.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
H II region
ⓘ
dense molecular cloud structures ⓘ emission nebula ⓘ open cluster ⓘ star-forming region ⓘ |
| age | a few million years (cluster stars) ⓘ |
| alsoKnownAs |
Eagle Nebula
NERFINISHED
ⓘ
Messier 16 NERFINISHED ⓘ NGC 6611 NERFINISHED ⓘ |
| angularSize |
about 30 arcminutes by 35 arcminutes (nebula)
ⓘ
about 7 arcminutes by 5 arcminutes (cluster) ⓘ |
| apparentMagnitudeV | 6.0 ⓘ |
| bestKnownFor | Pillars of Creation NERFINISHED ⓘ |
| bestViewingSeason | northern summer ⓘ |
| catalogIn |
Messier Catalogue
NERFINISHED
ⓘ
New General Catalogue NERFINISHED ⓘ |
| cataloguedBy | Charles Messier NERFINISHED ⓘ |
| contains |
Pillars of Creation
NERFINISHED
ⓘ
molecular clouds ⓘ open star cluster NGC 6611 NERFINISHED ⓘ protostars ⓘ young massive stars ⓘ |
| declination | +13° 47′ ⓘ |
| discoveredBy | Jean-Philippe de Chéseaux NERFINISHED ⓘ |
| discoveryYear | 1745 ⓘ |
| distanceFromEarth |
about 2.1 kiloparsecs
ⓘ
about 7000 light-years ⓘ |
| dominantEmissionLines |
[O III]
ⓘ
[S II] ⓘ hydrogen-alpha ⓘ |
| liesNear |
Omega Nebula (M17)
NERFINISHED
ⓘ
Scutum Star Cloud NERFINISHED ⓘ |
| locatedInConstellation | Serpens NERFINISHED ⓘ |
| messierNumber | M16 NERFINISHED ⓘ |
| ngcNumber | NGC 6611 NERFINISHED ⓘ |
| notableFeature |
active star formation
ⓘ
elephant trunk structures ⓘ photoevaporation fronts ⓘ |
| observedBy |
Chandra X-ray Observatory
NERFINISHED
ⓘ
Hubble Space Telescope NERFINISHED ⓘ James Webb Space Telescope NERFINISHED ⓘ Spitzer Space Telescope NERFINISHED ⓘ |
| partOf |
M16
ⓘ
Milky Way NERFINISHED ⓘ Sagittarius Arm NERFINISHED ⓘ |
| rightAscension | 18h 18m ⓘ |
| spectralType | H II emission ⓘ |
| visibleFrom |
Northern Hemisphere
NERFINISHED
ⓘ
Southern Hemisphere NERFINISHED ⓘ |
| visibleIn | amateur telescopes ⓘ |
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: M16 Description of subject: M16, also known as the Eagle Nebula, is a famous star-forming region in the constellation Serpens, best known for the "Pillars of Creation" captured by the Hubble Space Telescope.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.