Local Arm
E100909
The Local Arm is the minor spiral arm of the Milky Way galaxy where our Solar System is located, situated between the larger Sagittarius and Perseus arms.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Local Arm canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T868812 — 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: Local Arm Context triple: [Orion Arm, alsoKnownAs, Local Arm]
-
A.
Bordon
Bordon is a town in East Hampshire, England, historically known for its large army camp and military training facilities.
-
B.
Arm Ltd.
Arm Ltd. is a British semiconductor and software design company best known for creating the ARM architecture used in the vast majority of the world’s mobile and embedded processors.
-
C.
Fleetwood
Fleetwood is a coastal town and historic port in Lancashire, England, known for its maritime heritage and role as a ferry and fishing hub.
-
D.
Langon
Langon is a commune in southwestern France’s Gironde department, known as a local center for wine production and river trade along the Garonne.
-
E.
Union Town
Union Town was the original name given to what is now Uniontown, Pennsylvania, a historic city in Fayette County known for its role in early American frontier and industrial development.
- 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: Local Arm Target entity description: The Local Arm is the minor spiral arm of the Milky Way galaxy where our Solar System is located, situated between the larger Sagittarius and Perseus arms.
-
A.
Bordon
Bordon is a town in East Hampshire, England, historically known for its large army camp and military training facilities.
-
B.
Arm Ltd.
Arm Ltd. is a British semiconductor and software design company best known for creating the ARM architecture used in the vast majority of the world’s mobile and embedded processors.
-
C.
Fleetwood
Fleetwood is a coastal town and historic port in Lancashire, England, known for its maritime heritage and role as a ferry and fishing hub.
-
D.
Langon
Langon is a commune in southwestern France’s Gironde department, known as a local center for wine production and river trade along the Garonne.
-
E.
Union Town
Union Town was the original name given to what is now Uniontown, Pennsylvania, a historic city in Fayette County known for its role in early American frontier and industrial development.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
minor spiral arm
ⓘ
spiral arm of the Milky Way ⓘ |
| alsoKnownAs |
Orion Arm
ⓘ
Orion Spur ⓘ |
| approximateGalactocentricDistance |
about 26,000 light-years
ⓘ
about 8 kiloparsecs ⓘ |
| classificationStatus | minor arm or spur rather than major arm ⓘ |
| contains |
Cygnus OB2 association
ⓘ
Earth ⓘ Hyades ⓘ
surface form:
Hyades star cluster
Local Bubble ⓘ Local Interstellar Cloud ⓘ Orion Molecular Cloud Complex ⓘ Orion OB association ⓘ
surface form:
Orion OB1 association
Orion Arm ⓘ
surface form:
Orion–Cygnus arm segment
Perseus OB2 association ⓘ Pleiades ⓘ
surface form:
Pleiades star cluster
Scorpius–Centaurus OB association ⓘ Solar System ⓘ Sun ⓘ Vela OB2 association ⓘ many of the brightest stars visible from Earth ⓘ many star-forming regions ⓘ nearby spiral arm segment hosting the Sun ⓘ numerous H II regions ⓘ numerous giant molecular clouds ⓘ numerous open star clusters ⓘ |
| distanceFromSun | the Sun lies within it ⓘ |
| galacticQuadrantCoverage | spans multiple Galactic quadrants ⓘ |
| galaxy | Milky Way ⓘ |
| hasProperty |
contains massive OB stars
ⓘ
rich in young stars ⓘ site of ongoing star formation ⓘ |
| locatedIn | Milky Way ⓘ |
| observedIn |
infrared wavelengths
ⓘ
optical wavelengths ⓘ radio wavelengths ⓘ |
| orientation | roughly follows Galactic rotation ⓘ |
| partOf |
Milky Way
ⓘ
surface form:
Galactic disk
|
| positionBetween |
Perseus Arm
ⓘ
Sagittarius Arm ⓘ |
| relativeSize |
smaller than Perseus Arm
ⓘ
smaller than Sagittarius Arm ⓘ |
| separates | Sagittarius Arm from Perseus Arm ⓘ |
| structureType |
branch of spiral arm
ⓘ
spur ⓘ |
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: Local Arm Description of subject: The Local Arm is the minor spiral arm of the Milky Way galaxy where our Solar System is located, situated between the larger Sagittarius and Perseus arms.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.