Event Horizon Telescope
E232512
astronomical observatory network
international scientific collaboration
radio telescope
very-long-baseline interferometry array
The Event Horizon Telescope is a global network of synchronized radio observatories that together function as an Earth-sized virtual telescope, best known for capturing the first direct image of a black hole.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Event Horizon Telescope canonical | 11 |
| Event Horizon Telescope Collaboration | 2 |
| EHT | 1 |
| EHT global VLBI network | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2088804 — 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: Event Horizon Telescope Context triple: [Gordon and Betty Moore Foundation, hasFunded, Event Horizon Telescope]
-
A.
James Webb Space Telescope
The James Webb Space Telescope is a large, space-based observatory designed to study the universe in infrared light, revealing the formation of the first galaxies, stars, and planetary systems with unprecedented sensitivity and resolution.
-
B.
Schwarzschild telescope
The Schwarzschild telescope is a specialized two-mirror optical design that eliminates spherical aberration and coma, enabling wide-field, high-resolution astronomical imaging.
-
C.
Baade Telescope
The Baade Telescope is one of the twin 6.5-meter Magellan optical telescopes used for cutting-edge astronomical research in Chile.
-
D.
VISTA telescope
The VISTA telescope is a 4.1-meter wide-field survey telescope in Chile designed primarily for large-scale near-infrared sky surveys.
-
E.
Thirty Meter Telescope
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.
- 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: Event Horizon Telescope Target entity description: The Event Horizon Telescope is a global network of synchronized radio observatories that together function as an Earth-sized virtual telescope, best known for capturing the first direct image of a black hole.
-
A.
James Webb Space Telescope
The James Webb Space Telescope is a large, space-based observatory designed to study the universe in infrared light, revealing the formation of the first galaxies, stars, and planetary systems with unprecedented sensitivity and resolution.
-
B.
Schwarzschild telescope
The Schwarzschild telescope is a specialized two-mirror optical design that eliminates spherical aberration and coma, enabling wide-field, high-resolution astronomical imaging.
-
C.
Baade Telescope
The Baade Telescope is one of the twin 6.5-meter Magellan optical telescopes used for cutting-edge astronomical research in Chile.
-
D.
VISTA telescope
The VISTA telescope is a 4.1-meter wide-field survey telescope in Chile designed primarily for large-scale near-infrared sky surveys.
-
E.
Thirty Meter Telescope
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.
- F. None of above. chosen
Statements (56)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical observatory network
ⓘ
international scientific collaboration ⓘ radio telescope ⓘ very-long-baseline interferometry array ⓘ |
| abbreviation |
EHT
ⓘ
linked to:
Event Horizon Telescope
|
| angularResolution | about 20 microarcseconds ⓘ |
| baselineType | Earth-sized baseline ⓘ |
| capturedImageOf |
Sagittarius A*
ⓘ
linked to:
Milky Way center
supermassive black hole in galaxy M87 ⓘ |
| collaborationSize | over 200 scientists ⓘ |
| coordinatedBy |
Event Horizon Telescope Collaboration
ⓘ
linked to:
Event Horizon Telescope
|
| dataProcessingCenter |
MIT Haystack Observatory
ⓘ
Max Planck Institute for Radio Astronomy ⓘ |
| dataVolumePerCampaign | petabytes of data ⓘ |
| field |
black hole astrophysics
ⓘ
radio astronomy ⓘ |
| firstBlackHoleImageDate | 2019-04-10 ⓘ |
| firstBlackHoleImageObject |
M87*
ⓘ
linked to:
NGC 4486
|
| fullName | Event Horizon Telescope ⓘ |
| fundedBy |
East Asian funding agencies
ⓘ
European Research Council ⓘ National Science Foundation ⓘ |
| hasComponent |
Atacama Large Millimeter/submillimeter Array
ⓘ
Atacama Pathfinder Experiment ⓘ Greenland Telescope ⓘ IRAM 30m Telescope ⓘ
linked to:
IRAM 30m telescope
James Clerk Maxwell Telescope ⓘ Large Millimeter Telescope Alfonso Serrano ⓘ South Pole Telescope ⓘ Submillimeter Array ⓘ Submillimeter Telescope (Arizona) ⓘ |
| hasGoal |
image event horizons of black holes
ⓘ
study accretion and jets near supermassive black holes ⓘ test general relativity in the strong-field regime ⓘ |
| hasHeadquartersLocation | distributed, no single central observatory ⓘ |
| hasMemberInstitution |
European Southern Observatory
ⓘ
Harvard-Smithsonian Center for Astrophysics ⓘ
linked to:
Smithsonian Astrophysical Observatory
MIT Haystack Observatory ⓘ Max Planck Institute for Radio Astronomy ⓘ National Astronomical Observatory of Japan ⓘ
linked to:
NAOJ
|
| notableFor |
first direct image of a black hole
ⓘ
first image of the shadow of a black hole ⓘ |
| observes |
M87*
ⓘ
linked to:
NGC 4486
Sagittarius A* ⓘ
linked to:
Milky Way center
supermassive black holes ⓘ |
| operatesOn | global network of synchronized radio observatories ⓘ |
| SagittariusAStarImageDate | 2022-05-12 ⓘ |
| technique |
Earth-rotation synthesis
ⓘ
aperture synthesis ⓘ |
| testsTheory | general relativity ⓘ |
| usesFrequency | 230 GHz ⓘ |
| usesInstrument |
high-speed data recorders
ⓘ
hydrogen maser atomic clocks ⓘ |
| usesMethod | very-long-baseline interferometry ⓘ |
| usesWavelength |
1.3 millimeter
ⓘ
millimeter wavelength ⓘ |
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: Event Horizon Telescope Description of subject: The Event Horizon Telescope is a global network of synchronized radio observatories that together function as an Earth-sized virtual telescope, best known for capturing the first direct image of a black hole.
Referenced by (15)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Event Horizon Telescope
linked to: Event Horizon Telescope
subject linked to:
Messier 87
linked to: Event Horizon Telescope
linked to: Event Horizon Telescope