DDO 74
E491706
DDO 74 is a faint dwarf spheroidal galaxy in the constellation Leo and a satellite of the Milky Way, commonly known as the Leo I Dwarf Galaxy.
All labels observed (1)
| Label | Occurrences |
|---|---|
| DDO 74 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5075057 — 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: DDO 74 Context triple: [Leo I Dwarf Galaxy, alternateName, DDO 74]
-
A.
DDO 82
DDO 82 is a dwarf irregular galaxy that is a member of the nearby M81 Group of galaxies.
-
B.
DDO 53
DDO 53 is a faint dwarf irregular galaxy that is a member of the nearby M81 Group in the constellation Ursa Major.
-
C.
D.N.D.
D.N.D. is the standard legal abbreviation for the United States District Court for the District of North Dakota, a federal trial court within the Eighth Circuit.
-
D.
DDF
DDF is the commonly used abbreviation for the Dicastery for the Doctrine of the Faith, the Vatican department responsible for promoting and safeguarding Catholic doctrine.
-
E.
DD 5.1
DD 5.1 is a surround sound audio format that delivers discrete multichannel sound, typically used in home theater systems, cinemas, and digital broadcasts.
- 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: DDO 74 Target entity description: DDO 74 is a faint dwarf spheroidal galaxy in the constellation Leo and a satellite of the Milky Way, commonly known as the Leo I Dwarf Galaxy.
-
A.
DDO 82
DDO 82 is a dwarf irregular galaxy that is a member of the nearby M81 Group of galaxies.
-
B.
DDO 53
DDO 53 is a faint dwarf irregular galaxy that is a member of the nearby M81 Group in the constellation Ursa Major.
-
C.
D.N.D.
D.N.D. is the standard legal abbreviation for the United States District Court for the District of North Dakota, a federal trial court within the Eighth Circuit.
-
D.
DDF
DDF is the commonly used abbreviation for the Dicastery for the Doctrine of the Faith, the Vatican department responsible for promoting and safeguarding Catholic doctrine.
-
E.
DD 5.1
DD 5.1 is a surround sound audio format that delivers discrete multichannel sound, typically used in home theater systems, cinemas, and digital broadcasts.
- F. None of above. chosen
Statements (41)
| Predicate | Object |
|---|---|
| instanceOf | dwarf spheroidal galaxy ⓘ |
| absoluteMagnitude_V | -11.9 ⓘ |
| alsoKnownAs |
Leo I
NERFINISHED
ⓘ
Leo I Dwarf Galaxy NERFINISHED ⓘ PGC 34176 NERFINISHED ⓘ UGC 5470 NERFINISHED ⓘ |
| angularSize_arcmin | 12×10 ⓘ |
| apparentMagnitude_V | 11.2 ⓘ |
| belongsTo | Milky Way satellite system NERFINISHED ⓘ |
| catalog |
DDO
NERFINISHED
ⓘ
PGC NERFINISHED ⓘ UGC NERFINISHED ⓘ |
| constellation | Leo NERFINISHED ⓘ |
| contains |
horizontal branch stars
ⓘ
red giant branch stars ⓘ |
| declination_J2000 | +12° 18′ 30″ ⓘ |
| discoveredBy | Albert George Wilson NERFINISHED ⓘ |
| discoveryYear | 1950 ⓘ |
| distanceFromEarth_kpc | 250 ⓘ |
| distanceFromEarth_ly | 820000 ⓘ |
| galacticLatitude_deg | +49 ⓘ |
| galacticLongitude_deg | 226 ⓘ |
| galaxyType | dwarf galaxy ⓘ |
| gasContent | gas-poor ⓘ |
| hasAlternativeName | Leo I Dwarf Spheroidal Galaxy NERFINISHED ⓘ |
| hasDarkMatterDominance | true ⓘ |
| hasStellarPopulation |
intermediate-age
ⓘ
old ⓘ |
| heliocentricDistance_kpc | 254 ⓘ |
| isFaint | true ⓘ |
| isResolvedIntoStars | true ⓘ |
| locatedIn | Virgo Supercluster NERFINISHED ⓘ |
| memberOf | Local Group NERFINISHED ⓘ |
| metallicity_Fe_H | -1.4 ⓘ |
| morphologicalType | dSph ⓘ |
| orbitalStatus | bound satellite of the Milky Way ⓘ |
| radialVelocity_km_per_s | 282 ⓘ |
| rightAscension_J2000 | 10h 08m 27s ⓘ |
| satelliteOf | Milky Way NERFINISHED ⓘ |
| starFormationActivity | quiescent ⓘ |
| surfaceBrightness | low ⓘ |
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: DDO 74 Description of subject: DDO 74 is a faint dwarf spheroidal galaxy in the constellation Leo and a satellite of the Milky Way, commonly known as the Leo I Dwarf Galaxy.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.