Pluto Discovery Telescope
E481626
The Pluto Discovery Telescope is the historic Lowell Observatory instrument used by Clyde Tombaugh in 1930 to discover the dwarf planet Pluto.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Pluto Discovery Telescope canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4943112 — 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: Pluto Discovery Telescope Context triple: [Lowell Observatory, hasFacility, Pluto Discovery Telescope]
-
A.
Curtis Schmidt Telescope
The Curtis Schmidt Telescope is a wide-field Schmidt telescope known for its photographic sky surveys and operation at the Cerro Tololo Inter-American Observatory in Chile.
-
B.
Hale Telescope
The Hale Telescope is a historic 200-inch reflecting telescope at Palomar Observatory in California that was once the world’s largest and remains a landmark instrument in observational astronomy.
-
C.
20 Meter Telescope
The 20 Meter Telescope is a mid-sized radio telescope at the Green Bank Observatory used for astronomical research and education in radio astronomy.
-
D.
Vera C. Rubin Observatory
The Vera C. Rubin Observatory is a next-generation astronomical facility in Chile designed to conduct the Legacy Survey of Space and Time, producing an unprecedented, deep, wide, and fast imaging survey of the night sky.
-
E.
SOAR Telescope
The SOAR Telescope is a 4.1-meter optical and near-infrared astronomical telescope located in Chile and used for a wide range of research observations of the southern sky.
- 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: Pluto Discovery Telescope Target entity description: The Pluto Discovery Telescope is the historic Lowell Observatory instrument used by Clyde Tombaugh in 1930 to discover the dwarf planet Pluto.
-
A.
Curtis Schmidt Telescope
The Curtis Schmidt Telescope is a wide-field Schmidt telescope known for its photographic sky surveys and operation at the Cerro Tololo Inter-American Observatory in Chile.
-
B.
Hale Telescope
The Hale Telescope is a historic 200-inch reflecting telescope at Palomar Observatory in California that was once the world’s largest and remains a landmark instrument in observational astronomy.
-
C.
20 Meter Telescope
The 20 Meter Telescope is a mid-sized radio telescope at the Green Bank Observatory used for astronomical research and education in radio astronomy.
-
D.
Vera C. Rubin Observatory
The Vera C. Rubin Observatory is a next-generation astronomical facility in Chile designed to conduct the Legacy Survey of Space and Time, producing an unprecedented, deep, wide, and fast imaging survey of the night sky.
-
E.
SOAR Telescope
The SOAR Telescope is a 4.1-meter optical and near-infrared astronomical telescope located in Chile and used for a wide range of research observations of the southern sky.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical instrument
ⓘ
telescope ⓘ |
| associatedWith |
Clyde Tombaugh
ⓘ
Lowell Observatory Pluto discovery ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| discovererOf |
Pluto
ⓘ
dwarf planet Pluto ⓘ
linked to:
Pluto
|
| fieldOfUse |
astronomy
ⓘ
observational astronomy ⓘ planetary astronomy ⓘ |
| hasDiscovery | Pluto ⓘ |
| hasSignificance |
instrument central to early 20th-century planet search efforts
ⓘ
instrument used to discover the first known Kuiper belt object ⓘ |
| hasType | optical telescope ⓘ |
| heritageStatus |
historic telescope
ⓘ
historically significant scientific instrument ⓘ |
| locatedIn |
Flagstaff, Arizona
ⓘ
linked to:
Flagstaff
Lowell Observatory ⓘ United States ⓘ
linked to:
United States of America
|
| namedAfter | discovery of Pluto ⓘ |
| notableUse | discovery of Pluto ⓘ |
| operator | Lowell Observatory ⓘ |
| partOf |
Lowell Observatory instrumentation
ⓘ
linked to:
Lowell Discovery Telescope
|
| significantEvent | used in 1930 to discover Pluto ⓘ |
| topicOf | history of Pluto discovery ⓘ |
| usedBy | Clyde Tombaugh ⓘ |
| usedFor |
astronomical observation
ⓘ
planetary search ⓘ search for trans-Neptunian planets ⓘ |
| yearOfNotableUse | 1930 ⓘ |
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: Pluto Discovery Telescope Description of subject: The Pluto Discovery Telescope is the historic Lowell Observatory instrument used by Clyde Tombaugh in 1930 to discover the dwarf planet Pluto.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.