Norma Arm
E21425
The Norma Arm is one of the major spiral arms of the Milky Way galaxy, rich in stars, gas, and dust and serving as a key site of star formation.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Norma Arm canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T156334 — 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: Norma Arm Context triple: [Milky Way, contains, Norma Arm]
-
A.
Dottie West
Dottie West was an American country music singer and songwriter known for her influential solo career and popular duets, particularly in the 1970s and 1980s.
-
B.
Tracy Nelson
Tracy Nelson is an American actress and author best known for her roles in the television series "Square Pegs" and "Father Dowling Mysteries."
-
C.
Crystal Langhorne
Crystal Langhorne is an American former professional basketball player and WNBA All-Star known for her efficient post play and key contributions to multiple championship-contending teams.
-
D.
Dee Dee Warwick
Dee Dee Warwick was an American soul and R&B singer known for hits in the 1960s and 1970s and for being part of the musical Warwick–Houston family.
-
E.
Kim Carnes
Kim Carnes is an American singer-songwriter best known for her raspy voice and the 1981 hit single "Bette Davis Eyes."
- 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: Norma Arm Target entity description: The Norma Arm is one of the major spiral arms of the Milky Way galaxy, rich in stars, gas, and dust and serving as a key site of star formation.
-
A.
Dottie West
Dottie West was an American country music singer and songwriter known for her influential solo career and popular duets, particularly in the 1970s and 1980s.
-
B.
Tracy Nelson
Tracy Nelson is an American actress and author best known for her roles in the television series "Square Pegs" and "Father Dowling Mysteries."
-
C.
Crystal Langhorne
Crystal Langhorne is an American former professional basketball player and WNBA All-Star known for her efficient post play and key contributions to multiple championship-contending teams.
-
D.
Dee Dee Warwick
Dee Dee Warwick was an American soul and R&B singer known for hits in the 1960s and 1970s and for being part of the musical Warwick–Houston family.
-
E.
Kim Carnes
Kim Carnes is an American singer-songwriter best known for her raspy voice and the 1981 hit single "Bette Davis Eyes."
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
spiral arm
ⓘ
structure in the Milky Way ⓘ |
| alsoKnownAs |
Norma–Cygnus Arm
ⓘ
surface form:
Norma-Cygnus Arm
Norma–Cygnus Arm ⓘ |
| connectsTo | inner regions near the Galactic center ⓘ |
| contains |
H II regions
ⓘ
OB associations ⓘ dense star-forming regions ⓘ embedded protostars ⓘ giant molecular clouds ⓘ interstellar dust ⓘ interstellar gas ⓘ massive stars ⓘ molecular clouds ⓘ stars ⓘ stellar nurseries ⓘ young star clusters ⓘ |
| distanceFromSun | several kiloparsecs ⓘ |
| galaxyTypeContext | barred spiral galaxy ⓘ |
| hasKinematicProperty | follows Galactic rotation curve ⓘ |
| hasProperty |
high concentration of cold molecular gas
ⓘ
major spiral arm ⓘ rich in dust ⓘ rich in gas ⓘ rich in stars ⓘ significant dust extinction ⓘ site of active star formation ⓘ traced by massive star-forming complexes ⓘ |
| hasSpiralPattern | logarithmic spiral ⓘ |
| isTracedBy |
CO molecular line emission
ⓘ
maser sources ⓘ radio observations of hydrogen ⓘ |
| liesInDirectionOf |
Galactic longitude around 330 degrees (inner segment)
ⓘ
southern sky constellations including Norma ⓘ |
| locatedIn |
Milky Way
ⓘ
surface form:
Milky Way disk
|
| namedAfter | constellation Norma ⓘ |
| obscuredIn | optical wavelengths by dust ⓘ |
| orientation | roughly follows the Milky Way bar at its inner end ⓘ |
| partOf | Milky Way ⓘ |
| positionInGalaxy | inner region of the Milky Way ⓘ |
| roleInGalaxy |
contributes significantly to the Milky Way’s spiral structure
ⓘ
major site of star formation in the Milky Way ⓘ |
| studiedBy |
infrared astronomy
ⓘ
radio astronomy ⓘ |
| visibleIn |
infrared wavelengths
ⓘ
radio wavelengths ⓘ |
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: Norma Arm Description of subject: The Norma Arm is one of the major spiral arms of the Milky Way galaxy, rich in stars, gas, and dust and serving as a key site of star formation.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.