Barnard's Galaxy
E140992
Barnard's Galaxy is a nearby irregular dwarf galaxy in the Local Group, notable for its low metallicity and active star formation.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Barnard's Galaxy canonical | 5 |
| E E Barnard's Galaxy | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T869237 — 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: Barnard's Galaxy Context triple: [Sagittarius, contains, Barnard's Galaxy]
-
A.
Cetus Dwarf Galaxy
The Cetus Dwarf Galaxy is a faint, spheroidal dwarf galaxy located in the constellation Cetus and is one of the small satellite members of our cosmic neighborhood.
-
B.
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.
-
C.
Carina Dwarf Galaxy
The Carina Dwarf Galaxy is a faint, spheroidal satellite galaxy of the Milky Way located in the Local Group, notable for its low luminosity and predominantly old stellar population.
-
D.
Fornax Dwarf Galaxy
The Fornax Dwarf Galaxy is a small spheroidal satellite galaxy of the Milky Way, notable for its rich population of globular clusters and its membership in the Local Group.
-
E.
Aquarius Dwarf Galaxy
The Aquarius Dwarf Galaxy is a faint, small dwarf irregular galaxy on the outskirts of the Local Group, notable for its low luminosity and sparse stellar population.
- 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: Barnard's Galaxy Target entity description: Barnard's Galaxy is a nearby irregular dwarf galaxy in the Local Group, notable for its low metallicity and active star formation.
-
A.
Cetus Dwarf Galaxy
The Cetus Dwarf Galaxy is a faint, spheroidal dwarf galaxy located in the constellation Cetus and is one of the small satellite members of our cosmic neighborhood.
-
B.
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.
-
C.
Carina Dwarf Galaxy
The Carina Dwarf Galaxy is a faint, spheroidal satellite galaxy of the Milky Way located in the Local Group, notable for its low luminosity and predominantly old stellar population.
-
D.
Fornax Dwarf Galaxy
The Fornax Dwarf Galaxy is a small spheroidal satellite galaxy of the Milky Way, notable for its rich population of globular clusters and its membership in the Local Group.
-
E.
Aquarius Dwarf Galaxy
The Aquarius Dwarf Galaxy is a faint, small dwarf irregular galaxy on the outskirts of the Local Group, notable for its low luminosity and sparse stellar population.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
Local Group galaxy
ⓘ
astronomical object ⓘ dwarf galaxy ⓘ irregular galaxy ⓘ |
| absoluteMagnitudeV | about −16 ⓘ |
| alsoKnownAs |
Caldwell 57
ⓘ
E E Barnard's Galaxy ⓘ
linked to:
Barnard's Galaxy
IC 4895 ⓘ NGC 6822 ⓘ |
| angularSize | about 15 by 13 arcminutes ⓘ |
| apparentMagnitudeV | about 9.3 ⓘ |
| catalogCode |
Caldwell 57
ⓘ
IC 4895 ⓘ NGC 6822 ⓘ |
| contains |
Cepheid variable stars
ⓘ
H II regions ⓘ neutral hydrogen gas ⓘ planetary nebulae ⓘ supernova remnants ⓘ young star clusters ⓘ |
| declination | −14° 48′ ⓘ |
| discoveredBy | Edward Emerson Barnard ⓘ |
| discoveryYear | 1884 ⓘ |
| distanceFromEarth |
about 1.6 million light-years
ⓘ
about 500 kiloparsecs ⓘ |
| hasProperty |
active star formation
ⓘ
gas-rich ⓘ irregular morphology ⓘ low surface brightness ⓘ no prominent bulge ⓘ no well-defined spiral structure ⓘ |
| hasStarFormationRate | on the order of 0.02 solar masses per year ⓘ |
| isNearbyTo | Milky Way ⓘ |
| locatedIn |
constellation Sagittarius
ⓘ
linked to:
Sagittarius
|
| mass | on the order of 10^9 solar masses ⓘ |
| memberOf | Local Group ⓘ |
| metallicity | low metallicity ⓘ |
| morphologicalType | IB(s)m ⓘ |
| observedIn |
X-ray wavelengths
ⓘ
infrared wavelengths ⓘ optical wavelengths ⓘ radio wavelengths ⓘ |
| radialVelocity | about −57 km/s ⓘ |
| rightAscension | 19h 44m ⓘ |
| stellarPopulation | dominantly young and intermediate-age stars ⓘ |
| usedFor |
distance scale calibration using Cepheid variables
ⓘ
studies of star formation in low-metallicity environments ⓘ |
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: Barnard's Galaxy Description of subject: Barnard's Galaxy is a nearby irregular dwarf galaxy in the Local Group, notable for its low metallicity and active star formation.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Barnard's Galaxy