OAN San Pedro Mártir
E197314
OAN San Pedro Mártir is a major Mexican astronomical observatory located in the Sierra de San Pedro Mártir in Baja California, known for its high-quality observing conditions and optical telescopes.
All labels observed (1)
| Label | Occurrences |
|---|---|
| OAN San Pedro Mártir canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1749784 — 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: OAN San Pedro Mártir Context triple: [National Astronomical Observatory (Mexico), alsoKnownAs, OAN San Pedro Mártir]
-
A.
San Pedro Mártir
San Pedro Mártir is a neighborhood within Mexico City’s Tlalpan borough, known for its semi-rural character and location along the southern edge of the metropolis.
-
B.
San Pedro
San Pedro is a Chilean commune and town located within the Santiago Metropolitan Region, known for its rural character and agricultural activities.
-
C.
San Pedro
San Pedro is a coastal neighborhood in the city of Los Angeles known for its busy port, waterfront attractions, and maritime heritage.
-
D.
Santa María del Oro
Santa María del Oro is a municipality and town in the Mexican state of Nayarit, known for its scenic volcanic crater lake and surrounding natural landscapes.
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E.
San Lázaro
San Lázaro is a major transit hub and neighborhood in Mexico City, known for its metro and Metrobús connections and proximity to the federal legislative complex.
- 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: OAN San Pedro Mártir Target entity description: OAN San Pedro Mártir is a major Mexican astronomical observatory located in the Sierra de San Pedro Mártir in Baja California, known for its high-quality observing conditions and optical telescopes.
-
A.
San Pedro Mártir
San Pedro Mártir is a neighborhood within Mexico City’s Tlalpan borough, known for its semi-rural character and location along the southern edge of the metropolis.
-
B.
San Pedro
San Pedro is a Chilean commune and town located within the Santiago Metropolitan Region, known for its rural character and agricultural activities.
-
C.
San Pedro
San Pedro is a coastal neighborhood in the city of Los Angeles known for its busy port, waterfront attractions, and maritime heritage.
-
D.
Santa María del Oro
Santa María del Oro is a municipality and town in the Mexican state of Nayarit, known for its scenic volcanic crater lake and surrounding natural landscapes.
-
E.
San Lázaro
San Lázaro is a major transit hub and neighborhood in Mexico City, known for its metro and Metrobús connections and proximity to the federal legislative complex.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical observatory
ⓘ
optical observatory ⓘ |
| abbreviation |
OAN-SPM
ⓘ
SPM Observatory ⓘ |
| access | mountain road ⓘ |
| altitude | approximately 2800 m ⓘ |
| climate | dry ⓘ |
| continent | North America ⓘ |
| country | Mexico ⓘ |
| environment | mountainous site ⓘ |
| hasAdvantage |
large number of clear nights per year
ⓘ
low light pollution ⓘ stable atmosphere ⓘ |
| hasCode | OAN-SPM ⓘ |
| hasFacilityType | ground-based observatory ⓘ |
| hasInfrastructure |
astronomical domes
ⓘ
instrumentation laboratories ⓘ support facilities ⓘ |
| hasTelescope |
0.84 m telescope
ⓘ
1.5 m telescope ⓘ 2.12 m telescope ⓘ |
| knownFor |
dark skies
ⓘ
excellent seeing ⓘ high-quality observing conditions ⓘ optical astronomy ⓘ |
| languageOfOperator | Spanish ⓘ |
| locatedIn |
Baja California
ⓘ
Sierra de San Pedro Mártir ⓘ |
| near |
Gulf of California
ⓘ
Pacific Ocean ⓘ |
| observes |
exoplanet host stars
ⓘ
galaxies ⓘ stars ⓘ |
| operatedBy |
Instituto de Astronomía, UNAM
ⓘ
surface form:
Instituto de Astronomía, Universidad Nacional Autónoma de México
|
| operator |
Instituto de Astronomía, UNAM
ⓘ
surface form:
UNAM Instituto de Astronomía
|
| ownedBy |
National Autonomous University of Mexico
ⓘ
surface form:
Universidad Nacional Autónoma de México
|
| partOf |
Mexican national astronomical infrastructure
ⓘ
Observatorio Astronómico Nacional ⓘ
surface form:
Observatorio Astronómico Nacional (Mexico)
|
| primaryResearchField |
astrophysics
ⓘ
optical astronomy ⓘ |
| region | northwestern Mexico ⓘ |
| skyCoverage | northern hemisphere ⓘ |
| skyQuality | dark-sky site ⓘ |
| telescopeType | optical telescope ⓘ |
| usedBy |
Mexican astronomers
ⓘ
international collaborators ⓘ |
| usedFor |
photometry
ⓘ
professional astronomical observations ⓘ spectroscopy ⓘ |
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: OAN San Pedro Mártir Description of subject: OAN San Pedro Mártir is a major Mexican astronomical observatory located in the Sierra de San Pedro Mártir in Baja California, known for its high-quality observing conditions and optical telescopes.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.