2.12 m telescope
E833792
The 2.12 m telescope is a medium-sized optical research telescope at the OAN San Pedro Mártir Observatory in Mexico, used for a wide range of astronomical observations.
All labels observed (1)
| Label | Occurrences |
|---|---|
| 2.12 m telescope canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10000576 — 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: 2.12 m telescope Context triple: [OAN San Pedro Mártir, hasTelescope, 2.12 m telescope]
-
A.
20 Meter Telescope
The 20 Meter Telescope is a mid-sized radio telescope at the Green Bank Observatory used for astronomical research and education in radio astronomy.
-
B.
MPG/ESO 2.2 m Telescope
The MPG/ESO 2.2 m Telescope is a 2.2-meter optical telescope operated jointly by the Max Planck Society and the European Southern Observatory, widely used for imaging and survey work in the southern sky.
-
C.
SMARTS 1.0m Telescope
The SMARTS 1.0m Telescope is a one-meter-class optical telescope operated as part of the SMARTS consortium’s observing facilities at the Cerro Tololo Inter-American Observatory in Chile.
-
D.
SMARTS 1.5-meter Telescope
The SMARTS 1.5-meter Telescope is a medium-sized optical telescope used for a wide range of astronomical research as part of the SMARTS consortium’s observing facilities.
-
E.
SMARTS 1.3-meter Telescope
The SMARTS 1.3-meter Telescope is a small optical telescope used for a wide range of astronomical observations as part of the SMARTS consortium’s facilities in Chile.
- 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: 2.12 m telescope Target entity description: The 2.12 m telescope is a medium-sized optical research telescope at the OAN San Pedro Mártir Observatory in Mexico, used for a wide range of astronomical observations.
-
A.
20 Meter Telescope
The 20 Meter Telescope is a mid-sized radio telescope at the Green Bank Observatory used for astronomical research and education in radio astronomy.
-
B.
MPG/ESO 2.2 m Telescope
The MPG/ESO 2.2 m Telescope is a 2.2-meter optical telescope operated jointly by the Max Planck Society and the European Southern Observatory, widely used for imaging and survey work in the southern sky.
-
C.
SMARTS 1.0m Telescope
The SMARTS 1.0m Telescope is a one-meter-class optical telescope operated as part of the SMARTS consortium’s observing facilities at the Cerro Tololo Inter-American Observatory in Chile.
-
D.
SMARTS 1.5-meter Telescope
The SMARTS 1.5-meter Telescope is a medium-sized optical telescope used for a wide range of astronomical research as part of the SMARTS consortium’s observing facilities.
-
E.
SMARTS 1.3-meter Telescope
The SMARTS 1.3-meter Telescope is a small optical telescope used for a wide range of astronomical observations as part of the SMARTS consortium’s facilities in Chile.
- F. None of above. chosen
Statements (39)
| Predicate | Object |
|---|---|
| instanceOf |
ground-based telescope
ⓘ
optical telescope ⓘ reflecting telescope ⓘ research telescope ⓘ |
| altitude | approximately 2800 m ⓘ |
| apertureDiameter |
2.12 m
ⓘ
212 cm ⓘ |
| classification | medium-sized telescope ⓘ |
| country | Mexico ⓘ |
| hemisphere | Northern Hemisphere ⓘ |
| locatedIn |
Baja California
ⓘ
Mexico ⓘ OAN San Pedro Mártir Observatory ⓘ Sierra de San Pedro Mártir ⓘ |
| mirrorType | primary mirror ⓘ |
| mountType | equatorial mount ⓘ |
| observatory | OAN San Pedro Mártir Observatory ⓘ |
| operatedBy |
Instituto de Astronomía, Universidad Nacional Autónoma de México
ⓘ
linked to:
Instituto de Astronomía, UNAM
Observatorio Astronómico Nacional ⓘ |
| organization |
Universidad Nacional Autónoma de México
ⓘ
linked to:
National Autonomous University of Mexico
|
| primaryMirrorDiameter | 2.12 m ⓘ |
| region |
Sierra de San Pedro Mártir National Park
ⓘ
linked to:
Parque Nacional Sierra de San Pedro Mártir
|
| scienceUse |
AGN and quasar observations
ⓘ
galaxy observations ⓘ planetary nebula studies ⓘ spectroscopic surveys ⓘ star formation studies ⓘ time-domain astronomy ⓘ variable star observations ⓘ |
| siteCondition |
dark sky site
ⓘ
good seeing ⓘ |
| telescopeType | Ritchey–Chrétien reflector ⓘ |
| usedFor |
astronomical research
ⓘ
extragalactic astronomy ⓘ photometry ⓘ spectroscopy ⓘ stellar astronomy ⓘ |
| wavelengthRange |
near-infrared
ⓘ
optical ⓘ |
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: 2.12 m telescope Description of subject: The 2.12 m telescope is a medium-sized optical research telescope at the OAN San Pedro Mártir Observatory in Mexico, used for a wide range of astronomical observations.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.