SMACS 0723 galaxy cluster
E59349
SMACS 0723 is a massive, distant galaxy cluster that gained prominence as the subject of the first full-color deep-field image released by the James Webb Space Telescope, showcasing thousands of galaxies and gravitational lensing effects.
All labels observed (4)
| Label | Occurrences |
|---|---|
| SMACS (Southern MAssive Cluster Survey) | 1 |
| SMACS 0723 deep field image | 1 |
| SMACS 0723 galaxy cluster canonical | 1 |
| SMACS J0723.3−7327 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T476216 — 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: SMACS 0723 galaxy cluster Context triple: [James Webb Space Telescope, notableFirstImageTarget, SMACS 0723 galaxy cluster]
-
A.
Laniakea Supercluster
Laniakea Supercluster is a vast cosmic structure encompassing the Milky Way and hundreds of thousands of other galaxies, forming one of the largest known galaxy superclusters in the observable universe.
-
B.
globular star cluster M13
Globular star cluster M13, also known as the Great Hercules Cluster, is a dense, bright spherical collection of hundreds of thousands of ancient stars located in the constellation Hercules and is one of the most prominent globular clusters visible from Earth.
-
C.
Triangulum Galaxy
The Triangulum Galaxy is a nearby spiral galaxy in the Local Group, notable as one of the closest large galaxies to the Milky Way and a companion to the Andromeda Galaxy.
-
D.
Canis Major Dwarf Galaxy
The Canis Major Dwarf Galaxy is a nearby, faint irregular dwarf galaxy thought to be the closest known satellite galaxy to the Milky Way and currently being tidally disrupted by it.
-
E.
Magellanic Clouds
The Magellanic Clouds are two irregular dwarf galaxies orbiting the Milky Way, prominently visible from the Southern Hemisphere as hazy patches in the night 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: SMACS 0723 galaxy cluster Target entity description: SMACS 0723 is a massive, distant galaxy cluster that gained prominence as the subject of the first full-color deep-field image released by the James Webb Space Telescope, showcasing thousands of galaxies and gravitational lensing effects.
-
A.
Laniakea Supercluster
Laniakea Supercluster is a vast cosmic structure encompassing the Milky Way and hundreds of thousands of other galaxies, forming one of the largest known galaxy superclusters in the observable universe.
-
B.
globular star cluster M13
Globular star cluster M13, also known as the Great Hercules Cluster, is a dense, bright spherical collection of hundreds of thousands of ancient stars located in the constellation Hercules and is one of the most prominent globular clusters visible from Earth.
-
C.
Triangulum Galaxy
The Triangulum Galaxy is a nearby spiral galaxy in the Local Group, notable as one of the closest large galaxies to the Milky Way and a companion to the Andromeda Galaxy.
-
D.
Canis Major Dwarf Galaxy
The Canis Major Dwarf Galaxy is a nearby, faint irregular dwarf galaxy thought to be the closest known satellite galaxy to the Milky Way and currently being tidally disrupted by it.
-
E.
Magellanic Clouds
The Magellanic Clouds are two irregular dwarf galaxies orbiting the Milky Way, prominently visible from the Southern Hemisphere as hazy patches in the night sky.
- F. None of above. chosen
Statements (42)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical object
ⓘ
galaxy cluster ⓘ gravitational lensing galaxy cluster ⓘ |
| alsoKnownAs |
SMACS J0723.3−7327
ⓘ
linked to:
SMACS 0723 galaxy cluster
|
| backgroundGalaxiesLookbackTime | more than 13 billion years ⓘ |
| backgroundGalaxiesRedshiftRange | includes galaxies with redshift greater than 8 ⓘ |
| contains | member galaxies bound by gravity ⓘ |
| cosmologicalUse |
probe of large-scale structure
ⓘ
test of ΛCDM cosmology via cluster mass and lensing ⓘ |
| dataRelease | JWST Early Release Observations (ERO) ⓘ |
| distanceFromEarth | approximately 4.2 billion light-years ⓘ |
| environment | dense cluster environment ⓘ |
| exhibits | strong gravitational lensing ⓘ |
| featuredIn |
JWST image known as Webb’s First Deep Field
ⓘ
linked to:
James Webb Space Telescope
first full-color deep-field image released by the James Webb Space Telescope ⓘ |
| hostTelescopeAgency |
CSA
ⓘ
ESA ⓘ
linked to:
European Space Agency
NASA ⓘ |
| imageReleaseDate | 12 July 2022 ⓘ |
| instrumentUsed |
JWST MIRI
ⓘ
linked to:
Mid-Infrared Instrument
JWST NIRCam ⓘ
linked to:
NIRCam
JWST NIRISS ⓘ |
| locatedIn | constellation Volans ⓘ |
| mass | massive galaxy cluster ⓘ |
| notableFor |
being one of the first public science images from JWST
ⓘ
highly detailed deep-field view of the distant universe ⓘ |
| observedBy |
Hubble Space Telescope
ⓘ
James Webb Space Telescope ⓘ ground-based telescopes in optical and X-ray bands ⓘ |
| observedIn | near-infrared wavelengths by JWST ⓘ |
| partOf |
SMACS (Southern MAssive Cluster Survey)
ⓘ
linked to:
SMACS 0723 galaxy cluster
|
| redshift | approximately 0.39 ⓘ |
| scienceGoals |
constrain galaxy formation at high redshift
ⓘ
map mass distribution via strong lensing models ⓘ study star formation in lensed background galaxies ⓘ |
| shows |
distorted arcs of background galaxies due to gravitational lensing
ⓘ
thousands of galaxies in JWST deep-field image ⓘ |
| surveyedIn | Southern MAssive Cluster Survey ⓘ |
| usedAs | gravitational lens to magnify background galaxies ⓘ |
| usedFor |
calibration and demonstration of JWST deep-field capabilities
ⓘ
studies of dark matter distribution via lensing ⓘ studies of early-universe galaxies ⓘ |
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: SMACS 0723 galaxy cluster Description of subject: SMACS 0723 is a massive, distant galaxy cluster that gained prominence as the subject of the first full-color deep-field image released by the James Webb Space Telescope, showcasing thousands of galaxies and gravitational lensing effects.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: SMACS 0723 galaxy cluster
linked to: SMACS 0723 galaxy cluster
subject linked to:
JWST Early Release Observations (ERO)
linked to: SMACS 0723 galaxy cluster