Cerro Armazones
E177892
Cerro Armazones is a mountain in Chile’s Atacama Desert that is internationally known as the site of the European Southern Observatory’s Extremely Large Telescope.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Cerro Armazones canonical | 7 |
| Cerro Armazones selected in northern Chile | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1541383 — 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: Cerro Armazones Context triple: [Paranal Observatory, near, Cerro Armazones]
-
A.
Cerro Pachón
Cerro Pachón is a high-altitude mountain peak in the Chilean Andes renowned as a premier site for professional astronomical observatories due to its clear, dry skies and stable atmospheric conditions.
-
B.
La Silla mountain
La Silla mountain is a peak in Chile’s Atacama Desert that hosts major astronomical facilities and is known for its exceptionally clear, dark skies.
-
C.
Cerro Las Campanas
Cerro Las Campanas is a high, dry mountain peak in Chile’s Atacama Desert that hosts major astronomical observatories due to its exceptionally clear, dark skies.
-
D.
Cerro de la Estrella
Cerro de la Estrella is a prominent hill and archaeological site in Mexico City known for its historical and cultural significance, including ancient ceremonial traditions.
-
E.
Chajnantor Plateau
The Chajnantor Plateau is a high, arid plain in northern Chile’s Atacama Desert renowned for its exceptional atmospheric conditions that make it one of the world’s premier sites for radio and submillimeter astronomy.
- 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: Cerro Armazones Target entity description: Cerro Armazones is a mountain in Chile’s Atacama Desert that is internationally known as the site of the European Southern Observatory’s Extremely Large Telescope.
-
A.
Cerro Pachón
Cerro Pachón is a high-altitude mountain peak in the Chilean Andes renowned as a premier site for professional astronomical observatories due to its clear, dry skies and stable atmospheric conditions.
-
B.
La Silla mountain
La Silla mountain is a peak in Chile’s Atacama Desert that hosts major astronomical facilities and is known for its exceptionally clear, dark skies.
-
C.
Cerro Las Campanas
Cerro Las Campanas is a high, dry mountain peak in Chile’s Atacama Desert that hosts major astronomical observatories due to its exceptionally clear, dark skies.
-
D.
Cerro de la Estrella
Cerro de la Estrella is a prominent hill and archaeological site in Mexico City known for its historical and cultural significance, including ancient ceremonial traditions.
-
E.
Chajnantor Plateau
The Chajnantor Plateau is a high, arid plain in northern Chile’s Atacama Desert renowned for its exceptional atmospheric conditions that make it one of the world’s premier sites for radio and submillimeter astronomy.
- F. None of above. chosen
Statements (37)
| Predicate | Object |
|---|---|
| instanceOf | mountain ⓘ |
| altitudeAdvantage |
improved seeing conditions
ⓘ
reduced atmospheric absorption ⓘ |
| climate | hyper-arid desert climate ⓘ |
| constructionActivity | mountaintop reshaped for ELT platform ⓘ |
| continent | South America ⓘ |
| country | Chile ⓘ |
| distanceTo |
about 130 kilometres south of Antofagasta
ⓘ
about 20 kilometres from Cerro Paranal ⓘ |
| elevation |
approximately 3046 metres
ⓘ
approximately 9994 feet ⓘ |
| hasAccessRoad | road connection to Paranal Observatory ⓘ |
| hasProperty |
high fraction of clear nights
ⓘ
low humidity ⓘ very dark skies ⓘ |
| knownFor |
excellent astronomical observing conditions
ⓘ
site of the European Southern Observatory Extremely Large Telescope ⓘ |
| locatedIn |
Antofagasta Region
ⓘ
Atacama Desert ⓘ |
| locatedNear |
Cerro Paranal
ⓘ
linked to:
Paranal Observatory
Paranal Observatory ⓘ |
| managedBy |
European Southern Observatory (for ELT site)
ⓘ
linked to:
European Southern Observatory
|
| observatoryType | ground-based optical and infrared astronomy ⓘ |
| partOf | central Atacama Desert plateau region ⓘ |
| region | northern Chile ⓘ |
| selectedAs | site of the ESO Extremely Large Telescope ⓘ |
| selectionDate | 2010 ⓘ |
| skyCoverage | southern celestial hemisphere ⓘ |
| skyQuality |
low atmospheric turbulence
ⓘ
low light pollution ⓘ |
| telescopeAperture | 39-metre class optical and infrared telescope ⓘ |
| telescopeHost |
ESO ELT
ⓘ
Extremely Large Telescope ⓘ
linked to:
European Extremely Large Telescope
|
| usedFor |
astronomical observations
ⓘ
cosmology research (via ELT) ⓘ exoplanet studies (via ELT) ⓘ galaxy formation studies (via ELT) ⓘ |
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: Cerro Armazones Description of subject: Cerro Armazones is a mountain in Chile’s Atacama Desert that is internationally known as the site of the European Southern Observatory’s Extremely Large Telescope.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Cerro Armazones