Orion–Cygnus Arm
E558698
The Orion–Cygnus Arm is a minor spiral arm segment of the Milky Way Galaxy that contains our Solar System and many prominent stars and nebulae.
All labels observed (5)
| Label | Occurrences |
|---|---|
| Orion–Cygnus Arm canonical | 3 |
| Cygnus Arm of the Milky Way | 1 |
| Orion Arm | 1 |
| Orion–Cygnus Spur | 1 |
| local spiral arm (Orion Arm) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5969799 — 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: Orion–Cygnus Arm Context triple: [Rigel, galacticComponent, Orion–Cygnus Arm]
-
A.
Sagittarius Arm
The Sagittarius Arm is one of the main spiral arms of the Milky Way galaxy, rich in star-forming regions and nebulae, located between the galactic center and the outer Perseus Arm.
-
B.
Norma–Cygnus Arm
The Norma–Cygnus Arm is one of the major spiral arms of the Milky Way galaxy, located in its inner regions and rich in stars, gas, and star-forming regions.
-
C.
Scutum–Centaurus Arm
The Scutum–Centaurus Arm is one of the major spiral arms of the Milky Way galaxy, rich in stars, gas, and star-forming regions.
-
D.
Perseus Spiral Arm
The Perseus Spiral Arm is one of the major spiral arms of the Milky Way galaxy, located outside the Sun’s orbit and rich in star-forming regions and nebulae.
-
E.
Outer Galactic Arm
The Outer Galactic Arm is one of the Milky Way’s major spiral arms, located in its far outer regions and containing stars, gas, and dust orbiting the galactic center.
- 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: Orion–Cygnus Arm Target entity description: The Orion–Cygnus Arm is a minor spiral arm segment of the Milky Way Galaxy that contains our Solar System and many prominent stars and nebulae.
-
A.
Sagittarius Arm
The Sagittarius Arm is one of the main spiral arms of the Milky Way galaxy, rich in star-forming regions and nebulae, located between the galactic center and the outer Perseus Arm.
-
B.
Norma–Cygnus Arm
The Norma–Cygnus Arm is one of the major spiral arms of the Milky Way galaxy, located in its inner regions and rich in stars, gas, and star-forming regions.
-
C.
Scutum–Centaurus Arm
The Scutum–Centaurus Arm is one of the major spiral arms of the Milky Way galaxy, rich in stars, gas, and star-forming regions.
-
D.
Perseus Spiral Arm
The Perseus Spiral Arm is one of the major spiral arms of the Milky Way galaxy, located outside the Sun’s orbit and rich in star-forming regions and nebulae.
-
E.
Outer Galactic Arm
The Outer Galactic Arm is one of the Milky Way’s major spiral arms, located in its far outer regions and containing stars, gas, and dust orbiting the galactic center.
- F. None of above. chosen
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical structure
ⓘ
region of the Milky Way ⓘ spiral arm segment ⓘ |
| alsoKnownAs |
Local Arm
ⓘ
Local Spur ⓘ Orion Arm ⓘ |
| between |
Perseus Arm
ⓘ
Sagittarius Arm ⓘ |
| contains |
Barnard's Loop
ⓘ
Carina–Sagittarius boundary regions ⓘ
linked to:
Sagittarius-Carina arm star-forming complex
Cepheus OB2 association ⓘ Cygnus OB2 association ⓘ Cygnus X star-forming region ⓘ Earth ⓘ Horsehead Nebula ⓘ Hyades star cluster ⓘ
linked to:
Hyades
Local Bubble ⓘ Local Interstellar Cloud ⓘ North America Nebula ⓘ Orion Molecular Cloud Complex ⓘ Orion Nebula ⓘ Orion OB1 association ⓘ
linked to:
Orion OB association
Pelican Nebula ⓘ Perseus OB2 association ⓘ Pleiades star cluster ⓘ
linked to:
Pleiades
Rosette Nebula ⓘ Scorpius–Centaurus OB association ⓘ Solar System ⓘ Sun ⓘ Vela OB2 association ⓘ massive young stars ⓘ numerous H II regions ⓘ numerous giant molecular clouds ⓘ numerous open star clusters ⓘ supernova remnants ⓘ |
| describedAs |
minor spiral arm
ⓘ
spur between major spiral arms ⓘ |
| distanceFromGalacticCenter | about 8 kiloparsecs ⓘ |
| hasStarFormationActivity | intense ⓘ |
| length | several thousand light-years ⓘ |
| locatedIn |
Cygnus constellation direction
ⓘ
Orion constellation direction ⓘ Perseus constellation direction ⓘ Sagitta constellation direction ⓘ |
| observedIn |
infrared wavelengths
ⓘ
optical wavelengths ⓘ radio wavelengths ⓘ |
| partOf |
Milky Way
ⓘ
Milky Way disk ⓘ
linked to:
Galactic disk
|
| substructureOf | Perseus Arm ⓘ |
| width | about 3,000 light-years ⓘ |
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: Orion–Cygnus Arm Description of subject: The Orion–Cygnus Arm is a minor spiral arm segment of the Milky Way Galaxy that contains our Solar System and many prominent stars and nebulae.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Orion–Cygnus Arm
linked to: Orion–Cygnus Arm
linked to: Orion–Cygnus Arm