Hubble Ultra Deep Field

E825607

astronomical image deep field observation

The Hubble Ultra Deep Field is one of the deepest astronomical images ever taken, revealing thousands of extremely distant and early galaxies and providing key insights into the formation and evolution of the universe.

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All labels observed (5)

Label	Occurrences
Hubble Ultra Deep Field canonical	6
Hubble eXtreme Deep Field	2
HUDF	1
Hubble Ultra Deep Field 2012	1
UVUDF Ultraviolet Hubble Ultra Deep Field Treasury	1

How this entity was disambiguated

This entity first appeared as the object of triple T9838243 — 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 Ultra Deep Field
Context triple: [Hubble Heritage images, relatedTo, Hubble Ultra Deep Field]

A. Hubble Deep Field
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.
B. 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.
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. Baade Telescope
The Baade Telescope is one of the twin 6.5-meter Magellan optical telescopes used for cutting-edge astronomical research in Chile.
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 Ultra Deep Field
Target entity description: The Hubble Ultra Deep Field is one of the deepest astronomical images ever taken, revealing thousands of extremely distant and early galaxies and providing key insights into the formation and evolution of the universe.

A. Hubble Deep Field
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.
B. 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.
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. Baade Telescope
The Baade Telescope is one of the twin 6.5-meter Magellan optical telescopes used for cutting-edge astronomical research in Chile.
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 (50)

Predicate	Object
instanceOf	astronomical image ⓘ deep field observation ⓘ
alsoKnownAs	HUDF ⓘ linked to: Hubble Ultra Deep Field
angularArea	about 11 square arcminutes ⓘ
angularSize	about 2.7 arcminutes by 2.7 arcminutes ⓘ
announcedBy	ESA ⓘ NASA ⓘ
approximateSkyCoverage	about one‑tenth the diameter of the full Moon ⓘ
contains	about 10,000 galaxies ⓘ
dataUsedBy	astronomers worldwide ⓘ
declination	−27° 47′ 29″ ⓘ
fieldSelectionCriterion	low density of bright foreground stars ⓘ low foreground dust extinction ⓘ no bright nearby galaxies ⓘ
firstPublicReleaseDate	March 2004 ⓘ
followedBy	Hubble Frontier Fields ⓘ linked to: Hubble Frontier Fields programs Hubble Ultra Deep Field 2012 ⓘ linked to: Hubble Ultra Deep Field Hubble eXtreme Deep Field ⓘ linked to: Hubble Ultra Deep Field
hostObservatory	NASA Goddard Space Flight Center ⓘ linked to: Goddard Space Flight Center
imageProcessing	stacking of multiple long exposures ⓘ
imageType	composite image ⓘ
lightTravelTimeRange	up to about 13 billion years ⓘ
locatedInSkyRegion	constellation Fornax ⓘ linked to: Fornax constellation
numberOfExposures	800 ⓘ
observationEndDate	January 2004 ⓘ
observationStartDate	September 2003 ⓘ
predecessor	Hubble Deep Field ⓘ Hubble Deep Field South ⓘ linked to: Hubble Deep Field
probesCosmicEpoch	early universe ⓘ era of galaxy formation ⓘ
purpose	constrain reionization epoch ⓘ measure star‑formation history of the universe ⓘ study formation and evolution of galaxies ⓘ
redshiftRange	up to about z ≈ 7 ⓘ
rightAscension	03h 32m 39.0s ⓘ
scienceOperationsCenter	Space Telescope Science Institute ⓘ
selectedBy	Hubble Ultra Deep Field Team ⓘ
significance	one of the deepest optical images of the universe ⓘ provided constraints on galaxy evolution models ⓘ revealed extremely distant galaxies ⓘ
takenBy	Hubble Space Telescope ⓘ
telescopeInstrument	Advanced Camera for Surveys ⓘ Near Infrared Camera and Multi-Object Spectrometer ⓘ
totalExposureTime	about 1 million seconds ⓘ about 11.6 days ⓘ
usedFor	estimating luminosity functions at high redshift ⓘ identifying high‑redshift galaxy candidates ⓘ
wavelengthCoverage	near‑infrared ⓘ near‑ultraviolet ⓘ visible light ⓘ

How these facts were elicited

Referenced by (11)

Full triples — surface form annotated when it differs from this entity's canonical label.

Hubble Heritage images → relatedTo → Hubble Ultra Deep Field ⓘ

ACS → notableObservation → Hubble Ultra Deep Field ⓘ

NASA astrophysics observatories → includes → Hubble Ultra Deep Field ⓘ

Anton M. Koekemoer → notableWork → Hubble Ultra Deep Field ⓘ

GOODS survey → relatedProject → Hubble Ultra Deep Field ⓘ

Hubble Space Telescope Treasury programs → includesExampleProgram → UVUDF Ultraviolet Hubble Ultra Deep Field Treasury ⓘ