Hubble Deep Field
E824056
The Hubble Deep Field is a landmark astronomical image that revealed thousands of extremely distant galaxies in a tiny patch of sky, providing unprecedented insight into the early universe and galaxy formation.
All labels observed (7)
How this entity was disambiguated
This entity first appeared as the object of triple T9838242 — 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: Hubble Deep Field Context triple: [Hubble Heritage images, relatedTo, Hubble Deep Field]
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A.
Pillars of Creation
Pillars of Creation is a famous Hubble Space Telescope image showing towering columns of interstellar gas and dust in the Eagle Nebula where new stars are being born.
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B.
Baade Telescope
The Baade Telescope is one of the twin 6.5-meter Magellan optical telescopes used for cutting-edge astronomical research in Chile.
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C.
Hubble Frontier Fields programs
The Hubble Frontier Fields programs were a series of deep-space observing campaigns using the Hubble Space Telescope to study distant galaxies and dark matter through gravitational lensing by massive galaxy clusters.
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D.
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.
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E.
Hubble V
Hubble V is a massive, bright star-forming nebula in the Triangulum Galaxy, notable as one of the largest known H II regions in the Local Group.
- 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: Hubble Deep Field Target entity description: The Hubble Deep Field is a landmark astronomical image that revealed thousands of extremely distant galaxies in a tiny patch of sky, providing unprecedented insight into the early universe and galaxy formation.
-
A.
Pillars of Creation
Pillars of Creation is a famous Hubble Space Telescope image showing towering columns of interstellar gas and dust in the Eagle Nebula where new stars are being born.
-
B.
Baade Telescope
The Baade Telescope is one of the twin 6.5-meter Magellan optical telescopes used for cutting-edge astronomical research in Chile.
-
C.
Hubble Frontier Fields programs
The Hubble Frontier Fields programs were a series of deep-space observing campaigns using the Hubble Space Telescope to study distant galaxies and dark matter through gravitational lensing by massive galaxy clusters.
-
D.
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.
-
E.
Hubble V
Hubble V is a massive, bright star-forming nebula in the Triangulum Galaxy, notable as one of the largest known H II regions in the Local Group.
- F. None of above. chosen
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf |
Hubble Space Telescope observation
ⓘ
astronomical image ⓘ deep-field image ⓘ |
| alsoKnownAs | HDF ⓘ |
| angularSize | about 2.6 arcminutes by 2.6 arcminutes ⓘ |
| dataReleasePolicy | publicly released to the astronomical community ⓘ |
| declination | +62° 12′ 58″ ⓘ |
| exposureStrategy | multiple long exposures combined to increase depth ⓘ |
| fieldOfViewComparison | about one 24-millionth of the entire sky ⓘ |
| filterUsed |
F300W
ⓘ
F450W ⓘ F606W ⓘ F814W ⓘ |
| inspiredFollowup |
CANDELS survey
ⓘ
GOODS survey ⓘ Hubble Deep Field South ⓘ
linked to:
Hubble Deep Field
Hubble Ultra Deep Field ⓘ Hubble eXtreme Deep Field ⓘ
linked to:
Hubble Ultra Deep Field
|
| instrumentUsed | Wide Field and Planetary Camera 2 ⓘ |
| limitingMagnitude | about 30th magnitude in visible light ⓘ |
| locatedInSkyRegion | Ursa Major ⓘ |
| numberOfDetectedObjects | about 3,000 galaxies ⓘ |
| observationDuration | 10 consecutive days ⓘ |
| observationEndDate | 1995-12-28 ⓘ |
| observationStartDate | 1995-12-18 ⓘ |
| observedBy | Hubble Space Telescope ⓘ |
| operatedBy |
ESA
ⓘ
NASA ⓘ |
| partOf |
Hubble Space Telescope legacy datasets
ⓘ
linked to:
Hubble Space Telescope Treasury programs
|
| proposalLedBy | Robert Williams ⓘ |
| proposalRoleOfRobertWilliams | Director of Space Telescope Science Institute ⓘ |
| redshiftRange | up to about z ≈ 6 ⓘ |
| rightAscension | 12h 36m 49.4s ⓘ |
| scientificSignificance |
constrained cosmological models of structure formation
ⓘ
constrained the star-formation history of the universe ⓘ demonstrated that the distant universe is rich in galaxies ⓘ provided insight into early galaxy formation and evolution ⓘ revealed large numbers of very distant galaxies ⓘ served as a benchmark dataset for extragalactic astronomy ⓘ |
| selectionCriterion |
region away from the plane of the Milky Way
ⓘ
region with minimal known nearby galaxies ⓘ region with no bright foreground stars ⓘ region with very low foreground dust extinction ⓘ |
| solidAngle | about 4.4 square arcminutes ⓘ |
| totalExposureTime | about 342,000 seconds ⓘ |
| usedFor |
constraints on the extragalactic background light
ⓘ
measurements of galaxy number counts ⓘ studies of galaxy morphology at high redshift ⓘ studies of gravitational lensing by foreground structures ⓘ tests of hierarchical galaxy formation models ⓘ |
| wavelengthCoverage | near-ultraviolet to near-infrared ⓘ |
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: Hubble Deep Field Description of subject: The Hubble Deep Field is a landmark astronomical image that revealed thousands of extremely distant galaxies in a tiny patch of sky, providing unprecedented insight into the early universe and galaxy formation.
Referenced by (10)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Hubble Deep Field
linked to: Hubble Deep Field
linked to: Hubble Deep Field
linked to: Hubble Deep Field
linked to: Hubble Deep Field
linked to: Hubble Deep Field
linked to: Hubble Deep Field