Palomar 48-inch Schmidt Telescope
E515954
The Palomar 48-inch Schmidt Telescope is a wide-field survey telescope at Palomar Observatory renowned for its major contributions to sky surveys and the discovery of numerous astronomical objects.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Samuel Oschin Telescope | 3 |
| Palomar 48-inch Schmidt Telescope canonical | 1 |
| Palomar Observatory Oschin Schmidt Telescope | 1 |
| Samuel Oschin 48-inch Schmidt telescope | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5363142 — 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: Palomar 48-inch Schmidt Telescope Context triple: [Palomar Observatory, hasTelescope, Palomar 48-inch Schmidt Telescope]
-
A.
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.
-
B.
100-inch Hooker Telescope at Mount Wilson Observatory
The 100-inch Hooker Telescope at Mount Wilson Observatory is a historic reflecting telescope that played a pivotal role in early 20th-century astronomy, including landmark discoveries about galaxies and the expanding universe.
-
C.
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.
-
D.
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.
-
E.
Víctor M. Blanco 4-meter Telescope
The Víctor M. Blanco 4-meter Telescope is a prominent optical telescope in Chile widely used for deep-sky surveys and cosmological research.
- 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: Palomar 48-inch Schmidt Telescope Target entity description: The Palomar 48-inch Schmidt Telescope is a wide-field survey telescope at Palomar Observatory renowned for its major contributions to sky surveys and the discovery of numerous astronomical objects.
-
A.
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.
-
B.
100-inch Hooker Telescope at Mount Wilson Observatory
The 100-inch Hooker Telescope at Mount Wilson Observatory is a historic reflecting telescope that played a pivotal role in early 20th-century astronomy, including landmark discoveries about galaxies and the expanding universe.
-
C.
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.
-
D.
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.
-
E.
Víctor M. Blanco 4-meter Telescope
The Víctor M. Blanco 4-meter Telescope is a prominent optical telescope in Chile widely used for deep-sky surveys and cosmological research.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
Schmidt telescope
ⓘ
astronomical telescope ⓘ survey telescope ⓘ |
| alternateName |
Palomar Schmidt
NERFINISHED
ⓘ
Samuel Oschin Telescope NERFINISHED ⓘ |
| apertureClass | 1–2 meter class telescope ⓘ |
| constructionStart | 1940s ⓘ |
| correctorType | Schmidt corrector plate ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| designedFor | wide-field sky surveys ⓘ |
| diameter |
1.22 meters
ⓘ
48 inches ⓘ |
| fieldOfView | wide field of view ⓘ |
| firstLight | 1948 ⓘ |
| hostedSurvey |
POSS I
NERFINISHED
ⓘ
POSS II NERFINISHED ⓘ Palomar Observatory Sky Survey NERFINISHED ⓘ Palomar Transient Factory NERFINISHED ⓘ Palomar-Quest survey NERFINISHED ⓘ Zwicky Transient Facility NERFINISHED ⓘ intermediate Palomar Transient Factory NERFINISHED ⓘ |
| knownFor |
discovery of comets
ⓘ
discovery of numerous asteroids ⓘ discovery of quasars ⓘ discovery of supernovae ⓘ major contributions to sky surveys ⓘ |
| laterDetector | charge-coupled devices ⓘ |
| locatedIn |
Palomar Observatory
NERFINISHED
ⓘ
San Diego County ⓘ
surface form:
San Diego County, California
United States of America ⓘ
surface form:
United States
|
| mountType | equatorial mount ⓘ |
| namedAfter | Samuel Oschin NERFINISHED ⓘ |
| observatoryCode | 675 ⓘ |
| operatedBy | California Institute of Technology NERFINISHED ⓘ |
| originalDetector | photographic plates ⓘ |
| partOf | Palomar Observatory survey facilities NERFINISHED ⓘ |
| primaryMirrorShape | spherical mirror ⓘ |
| significance | one of the most productive survey telescopes in history ⓘ |
| telescopeType | Schmidt camera ⓘ |
| upgradedTo | CCD-based imaging system ⓘ |
| usedFor |
digital sky surveys
ⓘ
near-Earth object searches ⓘ photographic sky surveys ⓘ time-domain astronomy ⓘ transient object searches ⓘ |
| usedInProject |
all-sky photographic surveys
ⓘ
time-domain sky monitoring ⓘ |
| wavelengthRange | optical ⓘ |
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: Palomar 48-inch Schmidt Telescope Description of subject: The Palomar 48-inch Schmidt Telescope is a wide-field survey telescope at Palomar Observatory renowned for its major contributions to sky surveys and the discovery of numerous astronomical objects.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Samuel Oschin Telescope
this entity surface form:
Samuel Oschin Telescope
this entity surface form:
Samuel Oschin 48-inch Schmidt telescope
this entity surface form:
Samuel Oschin Telescope
this entity surface form:
Palomar Observatory Oschin Schmidt Telescope