Scutum–Centaurus Arm
E20344
The Scutum–Centaurus Arm is one of the major spiral arms of the Milky Way galaxy, rich in stars, gas, and star-forming regions.
All labels observed (5)
| Label | Occurrences |
|---|---|
| Scutum–Centaurus Arm canonical | 5 |
| Scutum–Centaurus Arm of the Milky Way | 1 |
| Scutum–Centaurus arm | 1 |
| Scutum–Crux arm region | 1 |
| Scutum–Crux–Centaurus Arm | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T156333 — 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: Scutum–Centaurus Arm Context triple: [Milky Way, contains, Scutum–Centaurus Arm]
-
A.
Orion Arm
The Orion Arm is a minor spiral arm of the Milky Way galaxy that contains our Solar System and many of the stars visible in the night sky.
-
B.
Milky Way center
The Milky Way center is the dense, energetic core of our galaxy, hosting a supermassive black hole surrounded by stars, gas, and dust.
-
C.
Perseus Arm
The Perseus Arm is one of the major spiral arms of the Milky Way galaxy, rich in gas, dust, and star-forming regions.
-
D.
Milky Way
The Milky Way is the barred spiral galaxy that contains our Solar System and hundreds of billions of other stars.
-
E.
Triangulum Galaxy
The Triangulum Galaxy is a nearby spiral galaxy in the Local Group, notable as one of the closest large galaxies to the Milky Way and a companion to the Andromeda Galaxy.
- 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: Scutum–Centaurus Arm Target entity description: The Scutum–Centaurus Arm is one of the major spiral arms of the Milky Way galaxy, rich in stars, gas, and star-forming regions.
-
A.
Orion Arm
The Orion Arm is a minor spiral arm of the Milky Way galaxy that contains our Solar System and many of the stars visible in the night sky.
-
B.
Milky Way center
The Milky Way center is the dense, energetic core of our galaxy, hosting a supermassive black hole surrounded by stars, gas, and dust.
-
C.
Perseus Arm
The Perseus Arm is one of the major spiral arms of the Milky Way galaxy, rich in gas, dust, and star-forming regions.
-
D.
Milky Way
The Milky Way is the barred spiral galaxy that contains our Solar System and hundreds of billions of other stars.
-
E.
Triangulum Galaxy
The Triangulum Galaxy is a nearby spiral galaxy in the Local Group, notable as one of the closest large galaxies to the Milky Way and a companion to the Andromeda Galaxy.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
spiral arm
ⓘ
structure of the Milky Way ⓘ |
| alsoKnownAs |
Scutum–Crux–Centaurus Arm
ⓘ
linked to:
Scutum–Centaurus Arm
|
| armType | major spiral arm ⓘ |
| componentOf |
Milky Way spiral structure
ⓘ
linked to:
Milky Way
|
| connectedTo | Galactic bar ⓘ |
| contains |
H II regions
ⓘ
Scutum Star Cloud ⓘ
linked to:
Scutum
W43 star-forming complex ⓘ giant molecular clouds ⓘ infrared dark clouds ⓘ interstellar gas ⓘ maser sources ⓘ massive star-forming region G29.96−0.02 ⓘ massive young stars ⓘ molecular clouds ⓘ numerous OB associations ⓘ open star clusters ⓘ radio continuum sources ⓘ star-forming regions ⓘ stars ⓘ young stellar objects ⓘ |
| extendsThrough |
Centaurus constellation region
ⓘ
Scutum constellation region ⓘ |
| galaxy | Milky Way ⓘ |
| locatedIn |
Milky Way disk
ⓘ
linked to:
Milky Way
Milky Way inner region ⓘ
linked to:
Milky Way center
|
| namedAfter |
Centaurus constellation
ⓘ
linked to:
Centaurus constellation region
Scutum constellation ⓘ |
| observedIn |
infrared wavelengths
ⓘ
optical wavelengths ⓘ radio wavelengths ⓘ |
| orientation | roughly along Galactic longitude 20–50 degrees in inner Galaxy ⓘ |
| originatesNear |
Galactic center
ⓘ
linked to:
Milky Way center
|
| partOf | Milky Way ⓘ |
| positionInGalaxy | inner major arm inside the Sun’s orbit ⓘ |
| richIn |
dense molecular gas
ⓘ
massive star-forming complexes ⓘ young stellar populations ⓘ |
| role | major site of star formation in the Milky Way ⓘ |
| separatedFrom |
Norma Arm
ⓘ
Sagittarius Arm ⓘ |
| spiralPattern | logarithmic spiral ⓘ |
| tracedBy |
21-cm hydrogen line emission
ⓘ
CO molecular line emission ⓘ maser parallax measurements ⓘ |
| visibleFrom | Earth ⓘ |
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: Scutum–Centaurus Arm Description of subject: The Scutum–Centaurus Arm is one of the major spiral arms of the Milky Way galaxy, rich in stars, gas, and star-forming regions.
Referenced by (9)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Scutum–Centaurus Arm
linked to: Scutum–Centaurus Arm
linked to: Scutum–Centaurus Arm
subject linked to:
openCluster Stephenson 2
linked to: Scutum–Centaurus Arm