MMT Observatory
E181046
The MMT Observatory is a major astronomical research facility in Arizona known for its innovative multiple-mirror design and contributions to optical and infrared astronomy.
All labels observed (4)
| Label | Occurrences |
|---|---|
| MMT Observatory canonical | 4 |
| MMT 6.5-meter Telescope | 1 |
| MMT 6.5-meter telescope | 1 |
| MMT telescope | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1588595 — 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: MMT Observatory Context triple: [Smithsonian Astrophysical Observatory, operates, MMT Observatory]
-
A.
Mamalluca Observatory
Mamalluca Observatory is a popular public astronomical observatory in Chile’s Elqui Valley, renowned for its exceptionally clear skies and stargazing tourism.
-
B.
Hale Telescope
The Hale Telescope is a historic 200-inch reflecting telescope at Palomar Observatory in California that was once the world’s largest and remains a landmark instrument in observational astronomy.
-
C.
Teide Observatory
Teide Observatory is a major astronomical research facility on Tenerife in Spain’s Canary Islands, renowned for its clear skies and extensive array of solar and nighttime telescopes.
-
D.
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.
-
E.
43 Meter Telescope
The 43 Meter Telescope is a mid-sized radio telescope at the Green Bank Observatory in West Virginia used for astronomical and atmospheric research.
- 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: MMT Observatory Target entity description: The MMT Observatory is a major astronomical research facility in Arizona known for its innovative multiple-mirror design and contributions to optical and infrared astronomy.
-
A.
Mamalluca Observatory
Mamalluca Observatory is a popular public astronomical observatory in Chile’s Elqui Valley, renowned for its exceptionally clear skies and stargazing tourism.
-
B.
Hale Telescope
The Hale Telescope is a historic 200-inch reflecting telescope at Palomar Observatory in California that was once the world’s largest and remains a landmark instrument in observational astronomy.
-
C.
Teide Observatory
Teide Observatory is a major astronomical research facility on Tenerife in Spain’s Canary Islands, renowned for its clear skies and extensive array of solar and nighttime telescopes.
-
D.
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.
-
E.
43 Meter Telescope
The 43 Meter Telescope is a mid-sized radio telescope at the Green Bank Observatory in West Virginia used for astronomical and atmospheric research.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical observatory
ⓘ
research facility ⓘ |
| altitude |
approximately 2600 meters
ⓘ
approximately 8550 feet ⓘ |
| collaboration | Smithsonian–Arizona partnership ⓘ |
| conversionCompletionYear | 2000 ⓘ |
| convertedTo | single-mirror telescope ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| hasApertureClass | 6–7 meter class telescope ⓘ |
| hasDome | rotating enclosure ⓘ |
| hasInstrument |
imagers
ⓘ
multi-object spectrographs ⓘ spectrographs ⓘ |
| knownFor |
contributions to infrared astronomy
ⓘ
contributions to optical astronomy ⓘ innovative multiple-mirror design ⓘ large monolithic primary mirror ⓘ |
| locatedIn |
Arizona
ⓘ
Santa Rita Mountains ⓘ |
| locatedOn | Mount Hopkins ⓘ |
| mirrorCastingFacility | Richard F. Caris Mirror Lab ⓘ |
| mirrorMaterial | borosilicate glass ⓘ |
| namedAfter | Multiple Mirror Telescope ⓘ |
| nearCity |
Tucson
ⓘ
surface form:
Tucson, Arizona
|
| observes |
infrared wavelengths
ⓘ
optical wavelengths ⓘ |
| operatedBy |
Smithsonian Institution
ⓘ
University of Arizona ⓘ |
| originalDesign | multiple-mirror telescope ⓘ |
| originalIndividualMirrorDiameter | 1.8 meters ⓘ |
| originalMirrorCount | 6 ⓘ |
| partOf | Fred Lawrence Whipple Observatory ⓘ |
| primaryMirrorDiameter | 6.5 meters ⓘ |
| region |
Southern Arizona
ⓘ
surface form:
southern Arizona
|
| researchArea |
cosmology
ⓘ
extragalactic astronomy ⓘ galaxy evolution ⓘ stellar astrophysics ⓘ stellar populations ⓘ |
| scientificDiscipline |
astronomy
ⓘ
astrophysics ⓘ |
| skyCondition | dark-sky site ⓘ |
| state | Arizona ⓘ |
| telescopeType |
infrared telescope
ⓘ
optical telescope ⓘ |
| uses |
active optics
ⓘ
adaptive optics ⓘ |
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: MMT Observatory Description of subject: The MMT Observatory is a major astronomical research facility in Arizona known for its innovative multiple-mirror design and contributions to optical and infrared astronomy.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
MMIRS
this entity surface form:
MMT telescope
subject surface form:
MMIRS
this entity surface form:
MMT 6.5-meter Telescope
subject surface form:
MMIRS
this entity surface form:
MMT 6.5-meter telescope