NAOJ
E176202
NAOJ (National Astronomical Observatory of Japan) is Japan’s leading national research institute for astronomy, operating major observatories and contributing to international projects in ground-based and space-based astronomy.
All labels observed (5)
How this entity was disambiguated
This entity first appeared as the object of triple T1541324 — 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: NAOJ Context triple: [Atacama Large Millimeter/submillimeter Array, operatedBy, NAOJ]
-
A.
Subaru Telescope
The Subaru Telescope is an 8.2-meter optical-infrared reflecting telescope operated by Japan’s National Astronomical Observatory, renowned for wide-field deep-sky observations.
-
B.
Gemini North Observatory
Gemini North Observatory is a premier 8.1-meter optical/infrared telescope facility located on Maunakea in Hawaii, forming one half of the international Gemini Observatory.
-
C.
NOIRLab
NOIRLab is a U.S. National Science Foundation center that operates major ground-based optical and infrared observatories across the Americas for astronomical research.
-
D.
Gemini South Observatory
Gemini South Observatory is a major 8.1-meter optical and infrared telescope facility located on Cerro Pachón in Chile, forming the southern half of the international Gemini Observatory.
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E.
Canada–France–Hawaii Telescope
The Canada–France–Hawaii Telescope is a 3.6-meter optical and infrared telescope on Mauna Kea in Hawaii, operated collaboratively by Canada, France, and the University of Hawaii for astronomical 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: NAOJ Target entity description: NAOJ (National Astronomical Observatory of Japan) is Japan’s leading national research institute for astronomy, operating major observatories and contributing to international projects in ground-based and space-based astronomy.
-
A.
Subaru Telescope
The Subaru Telescope is an 8.2-meter optical-infrared reflecting telescope operated by Japan’s National Astronomical Observatory, renowned for wide-field deep-sky observations.
-
B.
Gemini North Observatory
Gemini North Observatory is a premier 8.1-meter optical/infrared telescope facility located on Maunakea in Hawaii, forming one half of the international Gemini Observatory.
-
C.
NOIRLab
NOIRLab is a U.S. National Science Foundation center that operates major ground-based optical and infrared observatories across the Americas for astronomical research.
-
D.
Gemini South Observatory
Gemini South Observatory is a major 8.1-meter optical and infrared telescope facility located on Cerro Pachón in Chile, forming the southern half of the international Gemini Observatory.
-
E.
Canada–France–Hawaii Telescope
The Canada–France–Hawaii Telescope is a 3.6-meter optical and infrared telescope on Mauna Kea in Hawaii, operated collaboratively by Canada, France, and the University of Hawaii for astronomical research.
- F. None of above. chosen
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical observatory
ⓘ
intergovernmental organization participant ⓘ national research institute ⓘ |
| abbreviation | NAOJ ⓘ |
| collaboratesWith |
Academia Sinica Institute of Astronomy and Astrophysics
ⓘ
linked to:
Academia Sinica
Canadian astronomical institutions ⓘ ESO (European Southern Observatory) ⓘ
linked to:
European Southern Observatory
JAXA ⓘ
linked to:
Japan Aerospace Exploration Agency
NSF (United States National Science Foundation) ⓘ
linked to:
National Science Foundation
|
| country | Japan ⓘ |
| field |
astronomy
ⓘ
astrophysics ⓘ space science ⓘ |
| focus |
astronomical data archiving
ⓘ
ground-based astronomy ⓘ instrumentation development ⓘ public outreach in astronomy ⓘ space-based astronomy ⓘ |
| foundedBy |
Japanese government
ⓘ
linked to:
Government of Japan
|
| fullName |
National Astronomical Observatory of Japan
ⓘ
linked to:
NAOJ
|
| hasDivision |
Center for Astronomy Education and Public Outreach
ⓘ
Center for Computational Astrophysics ⓘ Division of Optical and Infrared Astronomy ⓘ Division of Radio Astronomy ⓘ Subaru Telescope Directorate ⓘ
linked to:
Subaru Telescope
|
| headquartersLocation | Mitaka, Tokyo, Japan ⓘ |
| language |
English
ⓘ
Japanese ⓘ |
| operates |
ALMA Regional Center (Japan node)
ⓘ
Mizusawa VLBI Observatory ⓘ Nobeyama Radio Observatory ⓘ Okayama Astrophysical Observatory ⓘ Solar observation facilities at NAOJ Mitaka campus ⓘ Subaru Telescope ⓘ TAMA 300 gravitational wave detector (historical) ⓘ |
| parentOrganization | National Institutes of Natural Sciences ⓘ |
| participatesIn |
Atacama Large Millimeter/submillimeter Array
ⓘ
East Asian Observatory collaborations ⓘ JAXA space astronomy missions (as science partner) ⓘ Thirty Meter Telescope project ⓘ
linked to:
Thirty Meter Telescope
VERA (VLBI Exploration of Radio Astrometry) ⓘ |
| predecessor | Tokyo Astronomical Observatory ⓘ |
| researchArea |
cosmology
ⓘ
exoplanets ⓘ galaxy formation and evolution ⓘ gravitational wave science (observational support) ⓘ optical and infrared astronomy ⓘ radio astronomy ⓘ solar physics ⓘ star formation ⓘ |
| website | https://www.nao.ac.jp ⓘ |
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: NAOJ Description of subject: NAOJ (National Astronomical Observatory of Japan) is Japan’s leading national research institute for astronomy, operating major observatories and contributing to international projects in ground-based and space-based astronomy.
Referenced by (14)
Full triples — surface form annotated when it differs from this entity's canonical label.
Atacama Large Millimeter/submillimeter Array
→
managedBy
→
National Astronomical Observatory of Japan
ⓘ
linked to: NAOJ
linked to: NAOJ
linked to: NAOJ
Chajnantor Plateau
→
hostCountryAgency
→
National Astronomical Observatory of Japan (for some facilities)
ⓘ
linked to: NAOJ
linked to: NAOJ
linked to: NAOJ
linked to: NAOJ
linked to: NAOJ
linked to: NAOJ
Fuchū
→
hasNotablePlace
→
National Astronomical Observatory of Japan (Mitaka/Fuchū area facilities)
ⓘ
linked to: NAOJ
linked to: NAOJ