Michael E. Brown
E103066
Michael E. Brown is an American astronomer known for his discoveries of distant trans-Neptunian objects that reshaped the definition of planets in our solar system.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Michael E. Brown canonical | 15 |
How this entity was disambiguated
This entity first appeared as the object of triple T869039 — 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: Michael E. Brown Context triple: [Eris, discoveredBy, Michael E. Brown]
-
A.
Dorion Sagan
Dorion Sagan is an American science writer and essayist known for his works on evolution, ecology, and complexity, and for coauthoring influential books with his mother, biologist Lynn Margulis.
-
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.
Mark Ciardi
Mark Ciardi is an American film producer and former Major League Baseball pitcher best known for producing inspirational sports and historical dramas such as "The Rookie," "Miracle," and "Chappaquiddick."
-
D.
Bruce T. Draine
Bruce T. Draine is an American astrophysicist renowned for his influential work on interstellar dust and the interstellar medium.
-
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: Michael E. Brown Target entity description: Michael E. Brown is an American astronomer known for his discoveries of distant trans-Neptunian objects that reshaped the definition of planets in our solar system.
-
A.
Dorion Sagan
Dorion Sagan is an American science writer and essayist known for his works on evolution, ecology, and complexity, and for coauthoring influential books with his mother, biologist Lynn Margulis.
-
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.
Mark Ciardi
Mark Ciardi is an American film producer and former Major League Baseball pitcher best known for producing inspirational sports and historical dramas such as "The Rookie," "Miracle," and "Chappaquiddick."
-
D.
Bruce T. Draine
Bruce T. Draine is an American astrophysicist renowned for his influential work on interstellar dust and the interstellar medium.
-
E.
Nicholas Sagan
Nicholas Sagan is the son of science communicator Ann Druyan and famed astronomer Carl Sagan.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
academic
ⓘ
astronomer ⓘ human ⓘ |
| areaOfInfluence |
classification of dwarf planets
ⓘ
solar system formation theories ⓘ |
| awardReceived |
Fellow of the American Academy of Arts and Sciences
ⓘ
Harold C. Urey Prize in Planetary Science ⓘ Urbain Le Verrier Prize ⓘ |
| countryOfCitizenship | United States of America ⓘ |
| educatedAt |
Haverford College
ⓘ
Princeton University ⓘ |
| employer | California Institute of Technology ⓘ |
| familyName | Brown ⓘ |
| fieldOfWork |
Kuiper Belt objects
ⓘ
surface form:
Kuiper belt objects
astronomy ⓘ planetary science ⓘ trans-Neptunian objects ⓘ |
| givenName | Michael ⓘ |
| hasDiscovered |
Eris
ⓘ
Haumea ⓘ Makemake ⓘ Orcus ⓘ Quaoar ⓘ Sedna ⓘ multiple Kuiper belt objects ⓘ |
| hasResearchInterest |
Kuiper Belt
ⓘ
surface form:
Kuiper belt
dwarf planets ⓘ outer solar system ⓘ scattered disc objects ⓘ |
| influenced |
IAU 2006 resolutions
ⓘ
surface form:
International Astronomical Union definition of planet
|
| knownFor |
discoveries of distant trans-Neptunian objects
ⓘ
role in the reclassification of Pluto as a dwarf planet ⓘ work leading to redefinition of the term planet ⓘ |
| languageOfWorkOrName | English ⓘ |
| name | Michael E. Brown self-link ⓘ |
| notablePublication | How I Killed Pluto and Why It Had It Coming ⓘ |
| notableWork |
discovery of Eris
ⓘ
discovery of Haumea ⓘ discovery of Makemake ⓘ discovery of Orcus ⓘ discovery of Quaoar ⓘ discovery of Sedna ⓘ |
| occupation |
astronomer
ⓘ
professor ⓘ |
| positionHeld | professor of planetary astronomy at Caltech ⓘ |
| sexOrGender | male ⓘ |
| twitterUsername | plutokiller ⓘ |
| workLocation |
Pasadena
ⓘ
surface form:
Pasadena, California
|
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: Michael E. Brown Description of subject: Michael E. Brown is an American astronomer known for his discoveries of distant trans-Neptunian objects that reshaped the definition of planets in our solar system.
Referenced by (15)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
90482 Orcus