Thirty Meter Telescope
E61751
The Thirty Meter Telescope is a planned next-generation ground-based optical and infrared observatory with a 30-meter primary mirror, designed to provide extremely high-resolution views of the universe from a mountaintop site.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Thirty Meter Telescope canonical | 6 |
| Thirty Meter Telescope project | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T490677 — 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: Thirty Meter Telescope Context triple: [Giant Magellan Telescope, comparableProjects, Thirty Meter Telescope]
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A.
Giant Magellan Telescope
The Giant Magellan Telescope is a next-generation, extremely large ground-based optical and infrared telescope designed to achieve unprecedented resolution for astronomical observations.
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B.
Magellan Clay Telescope
The Magellan Clay Telescope is one of the twin 6.5-meter Magellan telescopes at Las Campanas Observatory in Chile, used for cutting-edge optical and infrared astronomical research.
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C.
Vera C. Rubin Observatory
The Vera C. Rubin Observatory is a next-generation astronomical facility in Chile designed to conduct the Legacy Survey of Space and Time, producing an unprecedented, deep, wide, and fast imaging survey of the night sky.
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D.
Magellan Telescopes
Magellan Telescopes are a pair of 6.5-meter optical-infrared telescopes at Las Campanas Observatory in Chile, used for cutting-edge astronomical research by an international collaboration.
-
E.
Very Large Telescope
The Very Large Telescope is a flagship array of four large optical telescopes operated by the European Southern Observatory, renowned for its cutting-edge astronomical observations and discoveries.
- 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: Thirty Meter Telescope Target entity description: The Thirty Meter Telescope is a planned next-generation ground-based optical and infrared observatory with a 30-meter primary mirror, designed to provide extremely high-resolution views of the universe from a mountaintop site.
-
A.
Giant Magellan Telescope
The Giant Magellan Telescope is a next-generation, extremely large ground-based optical and infrared telescope designed to achieve unprecedented resolution for astronomical observations.
-
B.
Magellan Clay Telescope
The Magellan Clay Telescope is one of the twin 6.5-meter Magellan telescopes at Las Campanas Observatory in Chile, used for cutting-edge optical and infrared astronomical research.
-
C.
Vera C. Rubin Observatory
The Vera C. Rubin Observatory is a next-generation astronomical facility in Chile designed to conduct the Legacy Survey of Space and Time, producing an unprecedented, deep, wide, and fast imaging survey of the night sky.
-
D.
Magellan Telescopes
Magellan Telescopes are a pair of 6.5-meter optical-infrared telescopes at Las Campanas Observatory in Chile, used for cutting-edge astronomical research by an international collaboration.
-
E.
Very Large Telescope
The Very Large Telescope is a flagship array of four large optical telescopes operated by the European Southern Observatory, renowned for its cutting-edge astronomical observations and discoveries.
- F. None of above. chosen
Statements (63)
| Predicate | Object |
|---|---|
| instanceOf |
extremely large telescope
ⓘ
ground-based observatory ⓘ infrared telescope ⓘ optical telescope ⓘ |
| abbreviation | TMT ⓘ |
| alternativeSiteConsidered |
Canary Islands
ⓘ
La Palma ⓘ |
| comparedWith |
European Extremely Large Telescope
ⓘ
surface form:
Extremely Large Telescope
Giant Magellan Telescope ⓘ |
| controversy |
construction opposed by some Native Hawaiian groups
ⓘ
legal and permitting challenges in Hawaii ⓘ |
| designFeature |
alt-azimuth mount
ⓘ
enclosed dome ⓘ segmented mirror control system ⓘ |
| fundingModel | international partnership ⓘ |
| governingOrganization | TMT International Observatory LLC ⓘ |
| hasApertureClass | 30-meter class telescope ⓘ |
| hasInstrument |
adaptive optics system (planned)
ⓘ
mid-infrared instrument (planned) ⓘ multi-object spectrograph (planned) ⓘ near-infrared imager and spectrograph (planned) ⓘ wide-field optical spectrograph (planned) ⓘ |
| mirrorType | segmented primary mirror ⓘ |
| numberOfPrimaryMirrorSegments | 492 ⓘ |
| partnerCountry |
Canada
ⓘ
China ⓘ India ⓘ Japan ⓘ United States of America ⓘ
surface form:
United States
|
| partnerInstitution |
California Institute of Technology
ⓘ
Department of Science and Technology of India ⓘ National Astronomical Observatories of the Chinese Academy of Sciences ⓘ NAOJ ⓘ
surface form:
National Astronomical Observatory of Japan
National Research Council Canada ⓘ University of California system ⓘ
surface form:
University of California
|
| plannedLocation |
Hawaiʻi (island)
ⓘ
surface form:
Hawaii
Mauna Kea ⓘ United States of America ⓘ
surface form:
United States
|
| primaryMirrorDiameter |
30 meters
ⓘ
98 feet ⓘ |
| projectStatus |
planned
ⓘ
under development ⓘ |
| scienceGoal |
cosmology research
ⓘ
high-angular-resolution imaging ⓘ high-sensitivity spectroscopy ⓘ solar system science ⓘ stellar astrophysics ⓘ study of black holes ⓘ study of exoplanets ⓘ study of galaxy formation and evolution ⓘ study of the early universe ⓘ |
| scienceWavelengthRange |
mid-infrared
ⓘ
near-infrared ⓘ optical ⓘ |
| scientificAimsInclude |
direct imaging of exoplanets
ⓘ
probing dark matter and dark energy ⓘ spectroscopy of faint distant galaxies ⓘ testing general relativity near black holes ⓘ |
| siteElevation |
approximately 13,287 feet
ⓘ
approximately 4050 meters ⓘ |
| usesTechnology |
active optics
ⓘ
adaptive optics ⓘ laser guide star system ⓘ |
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: Thirty Meter Telescope Description of subject: The Thirty Meter Telescope is a planned next-generation ground-based optical and infrared observatory with a 30-meter primary mirror, designed to provide extremely high-resolution views of the universe from a mountaintop site.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Thirty Meter Telescope project