Book on the Solar Year
E863269
Book on the Solar Year is an astronomical treatise by the medieval mathematician Thabit ibn Qurra that analyzes the length and structure of the solar year.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Book on the Solar Year canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10448872 — 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: Book on the Solar Year Context triple: [Thabit ibn Qurra, notableWork, Book on the Solar Year]
-
A.
Astronomical Book
The Astronomical Book is a section of the ancient Jewish apocalyptic work 1 Enoch that presents detailed revelations about the structure of the heavens, the movements of celestial bodies, and the calendar.
-
B.
A Compendium of Spherical Astronomy
A Compendium of Spherical Astronomy is a foundational 19th-century textbook by Simon Newcomb that systematically presents the mathematical and theoretical principles underlying positional astronomy and celestial mechanics.
-
C.
Tables of the Sun
Tables of the Sun is an astronomical reference work by Simon Newcomb that provides highly accurate solar ephemerides used for celestial navigation and scientific calculations.
-
D.
Treatise on Astronomy
Treatise on Astronomy is a 19th-century textbook by American mathematician and astronomer Elias Loomis that systematically presents the fundamental principles and observations of astronomy for students and general readers.
-
E.
The Harmony of the Spheres
The Harmony of the Spheres is a short story by Salman Rushdie that blends myth, memory, and political turmoil in his characteristically magical-realist style.
- 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: Book on the Solar Year Target entity description: Book on the Solar Year is an astronomical treatise by the medieval mathematician Thabit ibn Qurra that analyzes the length and structure of the solar year.
-
A.
Astronomical Book
The Astronomical Book is a section of the ancient Jewish apocalyptic work 1 Enoch that presents detailed revelations about the structure of the heavens, the movements of celestial bodies, and the calendar.
-
B.
A Compendium of Spherical Astronomy
A Compendium of Spherical Astronomy is a foundational 19th-century textbook by Simon Newcomb that systematically presents the mathematical and theoretical principles underlying positional astronomy and celestial mechanics.
-
C.
Tables of the Sun
Tables of the Sun is an astronomical reference work by Simon Newcomb that provides highly accurate solar ephemerides used for celestial navigation and scientific calculations.
-
D.
Treatise on Astronomy
Treatise on Astronomy is a 19th-century textbook by American mathematician and astronomer Elias Loomis that systematically presents the fundamental principles and observations of astronomy for students and general readers.
-
E.
The Harmony of the Spheres
The Harmony of the Spheres is a short story by Salman Rushdie that blends myth, memory, and political turmoil in his characteristically magical-realist style.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical treatise
ⓘ
medieval scientific work ⓘ |
| aimsTo | determine a more accurate value for the solar year ⓘ |
| analyzes |
duration of the tropical year
ⓘ
solar motion ⓘ |
| associatedWith |
House of Wisdom in Baghdad
ⓘ
linked to:
House of Wisdom
medieval Islamic astronomy ⓘ |
| author | Thabit ibn Qurra ⓘ |
| citedBy | later Islamic scholars of astronomy ⓘ |
| concerns |
measurement of time
ⓘ
solar cycles ⓘ |
| contextOf | translation and development of Greek astronomy in Arabic ⓘ |
| countryOfOrigin | Abbasid Caliphate ⓘ |
| examines |
calendar corrections
ⓘ
observational data on the Sun ⓘ |
| fieldOfWork |
astronomy
ⓘ
mathematics ⓘ |
| focusesOn |
length of the solar year
ⓘ
structure of the solar year ⓘ |
| genre |
astronomical literature
ⓘ
scientific literature ⓘ |
| hasAuthor | Thabit ibn Qurra ⓘ |
| hasTopic |
errors in earlier estimates of the year length
ⓘ
precision of astronomical observations ⓘ |
| historicalPeriod | Islamic Golden Age ⓘ |
| influenced |
later Islamic astronomers
ⓘ
medieval theories of the year length ⓘ |
| influencedBy |
Ptolemaic astronomy
ⓘ
linked to:
Ptolemaic system
|
| language | Arabic ⓘ |
| mainSubject |
astronomy
ⓘ
mathematical astronomy ⓘ solar year ⓘ |
| partOf | corpus of Thabit ibn Qurra's astronomical works ⓘ |
| preservedIn | Arabic manuscript tradition ⓘ |
| relatedTo |
calendar reform
ⓘ
sidereal year ⓘ tropical year ⓘ |
| studies |
discrepancy between calendar year and solar year
ⓘ
relationship between solar year and seasons ⓘ |
| timePeriodOfComposition | 9th century ⓘ |
| typeOfWork | theoretical astronomy text ⓘ |
| uses |
geometrical methods
ⓘ
numerical calculations ⓘ |
| workOf | Thabit ibn Qurra ⓘ |
| writtenBy | Thabit ibn Qurra ⓘ |
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: Book on the Solar Year Description of subject: Book on the Solar Year is an astronomical treatise by the medieval mathematician Thabit ibn Qurra that analyzes the length and structure of the solar year.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.