Unnatamsa Yantra
E304513
Unnatamsa Yantra is an astronomical instrument at Jaipur’s Jantar Mantar observatory used to measure the altitude of celestial bodies with high precision.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Unnatamsa Yantra canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2838535 — 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: Unnatamsa Yantra Context triple: [Jantar Mantar, Jaipur, hasPart, Unnatamsa Yantra]
-
A.
Rama Yantra
Rama Yantra is a large cylindrical astronomical instrument at Jantar Mantar in New Delhi used for measuring the altitude and azimuth of celestial bodies.
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B.
Misra Yantra
Misra Yantra is an astronomical instrument at Jantar Mantar in New Delhi, historically used to measure time and celestial positions with high precision.
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C.
Shanku Yantra
Shanku Yantra is an ancient gnomon-based sundial instrument at Jantar Mantar in New Delhi used for measuring time and the Sun’s position.
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D.
Swayam
Swayam is an Indian government-backed online learning platform that provides free Massive Open Online Courses (MOOCs) from schools, colleges, and universities across the country.
-
E.
Uddyotakara
Uddyotakara was a prominent 6th-century Indian philosopher best known for his influential sub-commentary on the Nyāya Sūtras, which significantly shaped the development of Nyāya logic and epistemology.
- 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: Unnatamsa Yantra Target entity description: Unnatamsa Yantra is an astronomical instrument at Jaipur’s Jantar Mantar observatory used to measure the altitude of celestial bodies with high precision.
-
A.
Rama Yantra
Rama Yantra is a large cylindrical astronomical instrument at Jantar Mantar in New Delhi used for measuring the altitude and azimuth of celestial bodies.
-
B.
Misra Yantra
Misra Yantra is an astronomical instrument at Jantar Mantar in New Delhi, historically used to measure time and celestial positions with high precision.
-
C.
Shanku Yantra
Shanku Yantra is an ancient gnomon-based sundial instrument at Jantar Mantar in New Delhi used for measuring time and the Sun’s position.
-
D.
Swayam
Swayam is an Indian government-backed online learning platform that provides free Massive Open Online Courses (MOOCs) from schools, colleges, and universities across the country.
-
E.
Uddyotakara
Uddyotakara was a prominent 6th-century Indian philosopher best known for his influential sub-commentary on the Nyāya Sūtras, which significantly shaped the development of Nyāya logic and epistemology.
- F. None of above. chosen
Statements (33)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical instrument
ⓘ
observational instrument ⓘ |
| associatedWith |
Maharaja Jai Singh II
ⓘ
surface form:
Maharaja Sawai Jai Singh II
|
| constructionMaterial |
masonry
ⓘ
stone ⓘ |
| coordinateMeasured | altitude ⓘ |
| country | India ⓘ |
| culturalContext | Rajput court of Jaipur ⓘ |
| era | early 18th century ⓘ |
| field |
Indian astronomy
ⓘ
astronomy ⓘ observational astronomy ⓘ |
| heritageSiteContext |
Jantar Mantar, Jaipur
ⓘ
surface form:
UNESCO World Heritage Site Jantar Mantar, Jaipur
|
| languageOfName | Sanskrit ⓘ |
| locatedIn |
India
ⓘ
Jaipur ⓘ Jantar Mantar, Jaipur ⓘ Rajasthan ⓘ |
| measurementType | angular measurement ⓘ |
| nameMeaning | instrument for altitude ⓘ |
| observatoryType | fixed outdoor instrument ⓘ |
| observes |
Sun
ⓘ
celestial bodies ⓘ stars ⓘ |
| partOf |
Jantar Mantar, Jaipur
ⓘ
surface form:
Jantar Mantar observatory complex
|
| partOfTradition | Indian monumental astronomy instruments ⓘ |
| precision | high precision ⓘ |
| publicAccess | yes ⓘ |
| tourismAttraction | yes ⓘ |
| usedFor |
astronomical observations
ⓘ
high-precision altitude measurements ⓘ measuring altitude of celestial bodies ⓘ positional astronomy ⓘ |
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: Unnatamsa Yantra Description of subject: Unnatamsa Yantra is an astronomical instrument at Jaipur’s Jantar Mantar observatory used to measure the altitude of celestial bodies with high precision.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.