IC 2574
E450573
IC 2574 is a dwarf irregular galaxy in the constellation Ursa Major, notable for its active star formation and membership in the nearby M81 Group of galaxies.
All labels observed (1)
| Label | Occurrences |
|---|---|
| IC 2574 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4531649 — 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: IC 2574 Context triple: [M81 Group, containsGalaxy, IC 2574]
-
A.
IC 1613
IC 1613 is a dwarf irregular galaxy in the constellation Cetus and a member of the Local Group, notable for its low dust content and use in calibrating the cosmic distance scale.
-
B.
Collinder 232
Collinder 232 is an open star cluster located within the Carina Nebula in the constellation Carina.
-
C.
Collinder 228
Collinder 228 is an open star cluster embedded in the Carina Nebula, notable for its young, massive stars that help illuminate and shape the surrounding gas and dust.
-
D.
NGC 7320
NGC 7320 is a foreground spiral galaxy in the constellation Pegasus that appears as part of Stephan’s Quintet but is actually much closer to Earth than the other members.
-
E.
IC 10
IC 10 is a nearby irregular starburst galaxy notable for its intense star formation and membership 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: IC 2574 Target entity description: IC 2574 is a dwarf irregular galaxy in the constellation Ursa Major, notable for its active star formation and membership in the nearby M81 Group of galaxies.
-
A.
IC 1613
IC 1613 is a dwarf irregular galaxy in the constellation Cetus and a member of the Local Group, notable for its low dust content and use in calibrating the cosmic distance scale.
-
B.
Collinder 232
Collinder 232 is an open star cluster located within the Carina Nebula in the constellation Carina.
-
C.
Collinder 228
Collinder 228 is an open star cluster embedded in the Carina Nebula, notable for its young, massive stars that help illuminate and shape the surrounding gas and dust.
-
D.
NGC 7320
NGC 7320 is a foreground spiral galaxy in the constellation Pegasus that appears as part of Stephan’s Quintet but is actually much closer to Earth than the other members.
-
E.
IC 10
IC 10 is a nearby irregular starburst galaxy notable for its intense star formation and membership in the Local Group.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
dwarf irregular galaxy
ⓘ
galaxy ⓘ |
| angularSize | 13.2 × 5.4 arcminutes ⓘ |
| apparentMagnitudeV | 10.4 ⓘ |
| belongsTo | Northern celestial hemisphere ⓘ |
| catalog | Index Catalogue NERFINISHED ⓘ |
| constellation | Ursa Major NERFINISHED ⓘ |
| contains |
H II regions
ⓘ
neutral hydrogen (H I) ⓘ superbubbles ⓘ |
| declination | +68° 24′ (approximate) ⓘ |
| discoveredBy | Edwin Coddington NERFINISHED ⓘ |
| discoveryYear | 1898 ⓘ |
| distanceFromEarth |
approximately 12 million light-years
ⓘ
approximately 3.6 megaparsecs ⓘ |
| dominantStellarPopulation | young stars ⓘ |
| environment |
nearby to M81
ⓘ
nearby to NGC 2403 subgroup ⓘ |
| galacticLatitude | +43 degrees (approximate) ⓘ |
| galaxyGroup | M81 Group NERFINISHED ⓘ |
| galaxyType | Magellanic-type irregular ⓘ |
| gasContent | gas-rich ⓘ |
| hasDustContent | low to moderate ⓘ |
| hasRotationCurve | dark-matter-dominated ⓘ |
| hasStarFormation | yes ⓘ |
| locatedIn |
M81 Group
NERFINISHED
ⓘ
local universe ⓘ |
| memberOf | M81 Group NERFINISHED ⓘ |
| metallicity | low ⓘ |
| morphologicalType | IBm NERFINISHED ⓘ |
| observationalClass | nearby dwarf galaxy ⓘ |
| observedIn |
optical wavelengths
ⓘ
radio wavelengths ⓘ ultraviolet wavelengths ⓘ |
| otherName |
Coddington’s Nebula
NERFINISHED
ⓘ
PGC 28757 NERFINISHED ⓘ UGC 5666 NERFINISHED ⓘ |
| partOf | Local Volume ⓘ |
| radialVelocity | 136 km/s ⓘ |
| redshift | 0.000567 ⓘ |
| rightAscension | 10h 28m (approximate) ⓘ |
| starFormationActivity | active ⓘ |
| surfaceBrightness | low ⓘ |
| usedFor |
studies of dark matter in dwarf galaxies
ⓘ
studies of star formation in low-metallicity environments ⓘ |
| visibleFrom | mid-northern latitudes ⓘ |
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: IC 2574 Description of subject: IC 2574 is a dwarf irregular galaxy in the constellation Ursa Major, notable for its active star formation and membership in the nearby M81 Group of galaxies.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.