Narrabri Stellar Intensity Interferometer
E295263
The Narrabri Stellar Intensity Interferometer was a pioneering astronomical instrument in Australia that used intensity interferometry to measure the angular diameters of hot stars with unprecedented precision.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Narrabri Stellar Intensity Interferometer canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T2742180 — 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: Narrabri Stellar Intensity Interferometer Context triple: [Robert Hanbury Brown, hasNotableInstrumentNamedAfter, Narrabri Stellar Intensity Interferometer]
-
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.
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B.
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.
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C.
Simonyi Survey Telescope
The Simonyi Survey Telescope is a wide-field optical telescope designed for rapid, repeated imaging of the night sky as part of large-scale astronomical surveys.
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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: Narrabri Stellar Intensity Interferometer Target entity description: The Narrabri Stellar Intensity Interferometer was a pioneering astronomical instrument in Australia that used intensity interferometry to measure the angular diameters of hot stars with unprecedented precision.
-
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.
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.
-
C.
Simonyi Survey Telescope
The Simonyi Survey Telescope is a wide-field optical telescope designed for rapid, repeated imaging of the night sky as part of large-scale astronomical surveys.
-
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 (46)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical observatory
ⓘ
optical interferometer ⓘ stellar intensity interferometer ⓘ |
| altitude | approximately 200 metres above sea level ⓘ |
| basedOn | intensity interferometry ⓘ |
| commissioned | mid-1960s ⓘ |
| configuration | movable telescopes on circular track ⓘ |
| country | Australia ⓘ |
| dataType | intensity correlation data ⓘ |
| designedBy |
Richard Q. Twiss
ⓘ
Robert Hanbury Brown ⓘ |
| endDate | 1970s ⓘ |
| fundingSource | Australian research funding bodies ⓘ |
| hemisphere | Southern Hemisphere ⓘ |
| heritage | important historical astronomical instrument in Australia ⓘ |
| influenced |
design of later stellar interferometers
ⓘ
development of modern optical interferometry ⓘ |
| location |
Narrabri
ⓘ
New South Wales ⓘ |
| maximumBaseline | 188 metres ⓘ |
| measuredQuantity |
stellar angular diameter
ⓘ
visibility function of stellar disks ⓘ |
| measurementMethod | correlation of intensity fluctuations ⓘ |
| notableFor |
first practical stellar intensity interferometer
ⓘ
high-precision angular diameter measurements of hot stars ⓘ pioneering use of intensity interferometry in astronomy ⓘ |
| observedObject |
B-type stars
ⓘ
O-type stars ⓘ bright hot main-sequence stars ⓘ |
| operatedBy |
School of Physics, University of Sydney
ⓘ
University of Sydney ⓘ |
| operationalBand | visible light ⓘ |
| primaryUse |
measurement of stellar angular diameters
ⓘ
study of hot stars ⓘ |
| relatedConcept | amplitude interferometry ⓘ |
| relatedWork |
Hanbury Brown and Twiss effect
ⓘ
surface form:
Hanbury Brown–Twiss experiment
|
| scientificDiscipline |
astronomy
ⓘ
astrophysics ⓘ |
| startDate | 1963 ⓘ |
| status | decommissioned ⓘ |
| telescopeCount | 2 ⓘ |
| telescopeDiameter | 6.5 metres ⓘ |
| telescopeType | alt-azimuth mounted optical telescopes ⓘ |
| trackDiameter | 188 metres ⓘ |
| uses |
Hanbury Brown and Twiss effect
ⓘ
surface form:
Hanbury Brown–Twiss effect
|
| wavelengthRange | blue optical wavelengths ⓘ |
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: Narrabri Stellar Intensity Interferometer Description of subject: The Narrabri Stellar Intensity Interferometer was a pioneering astronomical instrument in Australia that used intensity interferometry to measure the angular diameters of hot stars with unprecedented precision.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.