P. Kenneth Seidelmann
E661543
P. Kenneth Seidelmann is an American astronomer known for his work in celestial mechanics and astrometry, including the discovery of the Jovian moon Calypso.
All labels observed (1)
| Label | Occurrences |
|---|---|
| P. Kenneth Seidelmann canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7408941 — 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: P. Kenneth Seidelmann Context triple: [Calypso, discoveredBy, P. Kenneth Seidelmann]
-
A.
Eric W. Kaler
Eric W. Kaler is an American chemical engineer and academic leader who has served as president of multiple major research universities.
-
B.
Steven Soter
Steven Soter is an American astrophysicist and science writer best known for co-writing the landmark television series "Cosmos: A Personal Voyage" with Carl Sagan and Ann Druyan.
-
C.
Ian Messiter
Ian Messiter was a British radio producer and game show creator best known for devising the long-running BBC Radio 4 panel show "Just a Minute."
-
D.
Owen Gingerich
Owen Gingerich was an American astronomer and historian of science known for his influential research on Copernicus and the history of early modern astronomy.
-
E.
Nicholas Sagan
Nicholas Sagan is the son of science communicator Ann Druyan and famed astronomer Carl Sagan.
- 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: P. Kenneth Seidelmann Target entity description: P. Kenneth Seidelmann is an American astronomer known for his work in celestial mechanics and astrometry, including the discovery of the Jovian moon Calypso.
-
A.
Eric W. Kaler
Eric W. Kaler is an American chemical engineer and academic leader who has served as president of multiple major research universities.
-
B.
Steven Soter
Steven Soter is an American astrophysicist and science writer best known for co-writing the landmark television series "Cosmos: A Personal Voyage" with Carl Sagan and Ann Druyan.
-
C.
Ian Messiter
Ian Messiter was a British radio producer and game show creator best known for devising the long-running BBC Radio 4 panel show "Just a Minute."
-
D.
Owen Gingerich
Owen Gingerich was an American astronomer and historian of science known for his influential research on Copernicus and the history of early modern astronomy.
-
E.
Nicholas Sagan
Nicholas Sagan is the son of science communicator Ann Druyan and famed astronomer Carl Sagan.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
American scientist
ⓘ
astronomer ⓘ |
| areaOfExpertise |
astronomical reference systems
ⓘ
planetary ephemerides ⓘ timekeeping in astronomy ⓘ |
| countryOfCitizenship | United States of America ⓘ |
| employer | United States Naval Observatory NERFINISHED ⓘ |
| familyName | Seidelmann NERFINISHED ⓘ |
| fieldOfWork |
astrometry
ⓘ
astronomy ⓘ celestial mechanics ⓘ |
| givenName | Kenneth NERFINISHED ⓘ |
| hasDiscovered |
Jovian moon Calypso
NERFINISHED
ⓘ
moon of Saturn Calypso ⓘ |
| hasGender | male ⓘ |
| knownFor |
contributions to the Astronomical Almanac
ⓘ
editorial work on the Explanatory Supplement to the Astronomical Almanac ⓘ work in astrometry ⓘ work in celestial mechanics ⓘ work on astronomical reference frames ⓘ work on ephemerides ⓘ |
| languageSpoken | English ⓘ |
| memberOf | astronomical community ⓘ |
| notableAchievement | co-discovery of Saturnian moon Calypso ⓘ |
| notableWork |
Explanatory Supplement to the Astronomical Almanac
NERFINISHED
ⓘ
calculation of astronomical constants ⓘ ephemerides ⓘ reference systems in astronomy ⓘ |
| occupation | astronomer ⓘ |
| workLocation | Washington, D.C. ⓘ |
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: P. Kenneth Seidelmann Description of subject: P. Kenneth Seidelmann is an American astronomer known for his work in celestial mechanics and astrometry, including the discovery of the Jovian moon Calypso.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.