UT4
E666536
UT4 is the fourth 8.2-meter Unit Telescope of ESO’s Very Large Telescope array at the Paranal Observatory in Chile.
All labels observed (1)
| Label | Occurrences |
|---|---|
| UT4 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7459391 — 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: UT4 Context triple: [Yepun, VLTUnitTelescopeNumber, UT4]
-
A.
Unreal Unearth
"Unreal Unearth" is a 2023 studio album by Irish singer-songwriter Hozier that blends folk, rock, and soul influences while thematically drawing on Dante’s "Inferno."
-
B.
U4
U4 is a line of the Frankfurt U-Bahn rapid transit system in Frankfurt, Germany.
-
C.
U4
U4 is one of the shortest and oldest lines of the Berlin U-Bahn, running entirely within the central district of Schöneberg.
-
D.
UFG
UFG is the commonly used abbreviation for Ulchi Freedom Guardian, a large-scale annual joint military exercise conducted by South Korea and the United States.
-
E.
SS (UBT)
SS (UBT) is a political party in India led by Uddhav Thackeray, formed after a split in the original Shiv Sena.
- 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: UT4 Target entity description: UT4 is the fourth 8.2-meter Unit Telescope of ESO’s Very Large Telescope array at the Paranal Observatory in Chile.
-
A.
Unreal Unearth
"Unreal Unearth" is a 2023 studio album by Irish singer-songwriter Hozier that blends folk, rock, and soul influences while thematically drawing on Dante’s "Inferno."
-
B.
U4
U4 is a line of the Frankfurt U-Bahn rapid transit system in Frankfurt, Germany.
-
C.
U4
U4 is one of the shortest and oldest lines of the Berlin U-Bahn, running entirely within the central district of Schöneberg.
-
D.
UFG
UFG is the commonly used abbreviation for Ulchi Freedom Guardian, a large-scale annual joint military exercise conducted by South Korea and the United States.
-
E.
SS (UBT)
SS (UBT) is a political party in India led by Uddhav Thackeray, formed after a split in the original Shiv Sena.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf | optical telescope ⓘ |
| altitude | about 2635 meters ⓘ |
| commissionedBy | European Southern Observatory NERFINISHED ⓘ |
| continent | South America ⓘ |
| country | Chile ⓘ |
| governingBody | ESO Council NERFINISHED ⓘ |
| hasAdaptiveOptics | true ⓘ |
| hasCoordinateSystem | equatorial coordinates (pointing) ⓘ |
| hasGuidingSystem | auto-guiding ⓘ |
| hasInstrument |
ERIS
NERFINISHED
ⓘ
Hawk-I NERFINISHED ⓘ MUSE NERFINISHED ⓘ NaCo NERFINISHED ⓘ VISIR NERFINISHED ⓘ |
| hasMirrorSupportSystem | active optics ⓘ |
| hasName | Yepun NERFINISHED ⓘ |
| hasSiteCondition |
dark sky
ⓘ
high atmospheric stability ⓘ low humidity ⓘ |
| locatedIn |
Atacama Desert
ⓘ
Chile ⓘ Paranal Observatory NERFINISHED ⓘ |
| memberOf | VLT Unit Telescopes NERFINISHED ⓘ |
| mountType | altazimuth mount ⓘ |
| nameLanguage | Mapudungun NERFINISHED ⓘ |
| nameMeaning | Evening Star NERFINISHED ⓘ |
| numberInSeries | 4 ⓘ |
| observatoryCode | 309 ⓘ |
| operator | European Southern Observatory NERFINISHED ⓘ |
| partOf |
ESO Paranal–Armazones Observatory complex
NERFINISHED
ⓘ
Paranal Observatory infrastructure ⓘ Very Large Telescope NERFINISHED ⓘ |
| primaryMirrorMaterial | glass-ceramic ⓘ |
| primaryMirrorShape | circular ⓘ |
| scienceFocus |
astronomy
ⓘ
astrophysics ⓘ |
| skyCoverage | southern sky ⓘ |
| telescopeDiameter |
8.2 meters
ⓘ
820 centimeters ⓘ |
| telescopeType | reflecting telescope ⓘ |
| usedFor |
imaging
ⓘ
infrared observations ⓘ integral-field spectroscopy ⓘ spectroscopy ⓘ |
| 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: UT4 Description of subject: UT4 is the fourth 8.2-meter Unit Telescope of ESO’s Very Large Telescope array at the Paranal Observatory in Chile.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.