Palomar Observatory Sky Survey
E514339
The Palomar Observatory Sky Survey is a landmark mid-20th-century photographic mapping of the night sky that produced some of the most widely used astronomical reference images for research and discovery.
All labels observed (6)
How this entity was disambiguated
This entity first appeared as the object of triple T5363163 — 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 Observatory Sky Survey Context triple: [Palomar Observatory, knownFor, Palomar Observatory Sky Survey]
-
A.
Two Micron All Sky Survey
The Two Micron All Sky Survey (2MASS) is an astronomical survey that mapped the entire sky in near-infrared wavelengths, producing a comprehensive catalog of stars, galaxies, and other celestial objects.
-
B.
Sloan Digital Sky Survey
The Sloan Digital Sky Survey is a major astronomical project that has created some of the most detailed three-dimensional maps of the universe using wide-field imaging and spectroscopy.
-
C.
Carnegie-Spitzer-IMACS Survey
The Carnegie-Spitzer-IMACS Survey is an astronomical research project that combines infrared observations from the Spitzer Space Telescope with optical spectroscopy from the IMACS instrument to study the formation and evolution of galaxies across cosmic time.
-
D.
Palomar Transient Factory
The Palomar Transient Factory is an astronomical survey project that used the Palomar Observatory to systematically search the night sky for transient and variable phenomena such as supernovae and other short-lived cosmic events.
-
E.
VISTA telescope
The VISTA telescope is a 4.1-meter wide-field survey telescope in Chile designed primarily for large-scale near-infrared sky surveys.
- 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 Observatory Sky Survey Target entity description: The Palomar Observatory Sky Survey is a landmark mid-20th-century photographic mapping of the night sky that produced some of the most widely used astronomical reference images for research and discovery.
-
A.
Two Micron All Sky Survey
The Two Micron All Sky Survey (2MASS) is an astronomical survey that mapped the entire sky in near-infrared wavelengths, producing a comprehensive catalog of stars, galaxies, and other celestial objects.
-
B.
Sloan Digital Sky Survey
The Sloan Digital Sky Survey is a major astronomical project that has created some of the most detailed three-dimensional maps of the universe using wide-field imaging and spectroscopy.
-
C.
Carnegie-Spitzer-IMACS Survey
The Carnegie-Spitzer-IMACS Survey is an astronomical research project that combines infrared observations from the Spitzer Space Telescope with optical spectroscopy from the IMACS instrument to study the formation and evolution of galaxies across cosmic time.
-
D.
Palomar Transient Factory
The Palomar Transient Factory is an astronomical survey project that used the Palomar Observatory to systematically search the night sky for transient and variable phenomena such as supernovae and other short-lived cosmic events.
-
E.
VISTA telescope
The VISTA telescope is a 4.1-meter wide-field survey telescope in Chile designed primarily for large-scale near-infrared sky surveys.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical catalog project
ⓘ
astronomical survey ⓘ photographic sky survey ⓘ |
| alsoKnownAs |
POSS
ⓘ
POSS I ⓘ
linked to:
POSS
|
| bandpass |
blue-sensitive photographic band
ⓘ
red-sensitive photographic band ⓘ |
| conductedAt | Palomar Observatory ⓘ |
| coverage |
most of the sky north of declination −27 degrees
ⓘ
northern sky ⓘ |
| dataFormat |
digitized images
ⓘ
photographic atlas ⓘ printed sky atlas ⓘ |
| digitizedAs | Digitized Sky Survey ⓘ |
| endYear | 1958 ⓘ |
| epoch | B1950 ⓘ |
| followedBy |
POSS II
ⓘ
Second Palomar Observatory Sky Survey ⓘ
linked to:
Palomar Observatory Sky Survey
|
| influenced |
Digitized Sky Survey
ⓘ
modern digital sky surveys ⓘ |
| limitingMagnitude |
about 20 in red band
ⓘ
about 21 in blue band ⓘ |
| locatedIn |
California
ⓘ
linked to:
California, United States
United States ⓘ
linked to:
United States of America
|
| medium | photographic plates ⓘ |
| notableFor |
being one of the first complete photographic surveys of the northern sky
ⓘ
wide use as a standard reference in 20th-century astronomy ⓘ |
| numberOfPlates | approximately 1878 plates ⓘ |
| observatoryOwner | California Institute of Technology ⓘ |
| operatedBy | California Institute of Technology ⓘ |
| plateScale | approximately 67 arcseconds per millimeter ⓘ |
| plateSize | 14-inch by 14-inch glass plates ⓘ |
| purpose |
mapping the night sky
ⓘ
providing reference images for astronomical research ⓘ supporting discovery of new astronomical objects ⓘ |
| sponsor |
California Institute of Technology
ⓘ
National Geographic Society ⓘ |
| startYear | 1949 ⓘ |
| telescopeUsed |
48-inch Schmidt telescope
ⓘ
linked to:
Burrell Schmidt Telescope
Samuel Oschin telescope ⓘ
linked to:
Palomar 48-inch Schmidt Telescope
|
| usedFor |
astrometric reference
ⓘ
identification of asteroids ⓘ identification of galaxies ⓘ identification of quasars ⓘ identification of variable stars ⓘ photometric reference ⓘ |
| wavelength | 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 Observatory Sky Survey Description of subject: The Palomar Observatory Sky Survey is a landmark mid-20th-century photographic mapping of the night sky that produced some of the most widely used astronomical reference images for research and discovery.
Referenced by (12)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Palomar Observatory Sky Survey
linked to: Palomar Observatory Sky Survey
linked to: Palomar Observatory Sky Survey
linked to: Palomar Observatory Sky Survey
linked to: Palomar Observatory Sky Survey
linked to: Palomar Observatory Sky Survey