Shanku Yantra
E115107
Shanku Yantra is an ancient gnomon-based sundial instrument at Jantar Mantar in New Delhi used for measuring time and the Sun’s position.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Shanku Yantra canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T932813 — 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: Shanku Yantra Context triple: [Jantar Mantar, New Delhi, hasPart, Shanku 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.
-
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.
Yantra
Yantra is a major river in northern Bulgaria that flows through cities like Veliko Tarnovo before joining the Danube.
-
D.
Sudarshana Chakra
Sudarshana Chakra is a legendary spinning disc-like divine weapon in Hindu mythology, most famously associated with the god Vishnu and used to destroy evil.
-
E.
Niyati Chakra
Niyati Chakra is a specialized astronomical instrument at Jantar Mantar in New Delhi used for observing and calculating celestial positions.
- 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: Shanku Yantra Target entity description: Shanku Yantra is an ancient gnomon-based sundial instrument at Jantar Mantar in New Delhi used for measuring time and the Sun’s position.
-
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.
Yantra
Yantra is a major river in northern Bulgaria that flows through cities like Veliko Tarnovo before joining the Danube.
-
D.
Sudarshana Chakra
Sudarshana Chakra is a legendary spinning disc-like divine weapon in Hindu mythology, most famously associated with the god Vishnu and used to destroy evil.
-
E.
Niyati Chakra
Niyati Chakra is a specialized astronomical instrument at Jantar Mantar in New Delhi used for observing and calculating celestial positions.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical instrument
ⓘ
gnomon-based instrument ⓘ heritage monument ⓘ sundial ⓘ |
| associatedWith |
Maharaja Jai Singh II
ⓘ
surface form:
Maharaja Sawai Jai Singh II
|
| basedOn |
gnomon principle
ⓘ
shadow casting of the Sun ⓘ |
| culturalContext |
Hindu astronomical tradition
ⓘ
Indian astronomy ⓘ |
| era | early 18th century ⓘ |
| heritageStatus | protected monument under Archaeological Survey of India ⓘ |
| isPartOf | architectural astronomical instruments of Jantar Mantar, New Delhi ⓘ |
| locatedIn |
Delhi
ⓘ
India ⓘ Jantar Mantar, New Delhi ⓘ New Delhi, India ⓘ
surface form:
New Delhi
|
| locatedOn |
Jantar Mantar, New Delhi
ⓘ
surface form:
Jantar Mantar grounds, New Delhi
|
| material |
masonry
ⓘ
stone ⓘ |
| measurementType |
solar altitude
ⓘ
solar azimuth ⓘ solar time ⓘ |
| observes | Sun ⓘ |
| partOf |
Jantar Mantar, New Delhi
ⓘ
surface form:
Jantar Mantar observatory complex, New Delhi
|
| tourismAttraction | yes ⓘ |
| usedFor |
measuring the Sun’s position
ⓘ
measuring time ⓘ solar observations ⓘ |
| uses |
gnomon
ⓘ
graduated scale ⓘ |
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: Shanku Yantra Description of subject: Shanku Yantra is an ancient gnomon-based sundial instrument at Jantar Mantar in New Delhi used for measuring time and the Sun’s position.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.