Butterfly Cluster
E472718
The Butterfly Cluster is a bright open star cluster in the constellation Scorpius, noted for its distinctive butterfly-like shape and visibility to the naked eye in dark skies.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Butterfly Cluster canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T4835399 — 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: Butterfly Cluster Context triple: [Scorpius, containsDeepSkyObject, Butterfly Cluster]
-
A.
Jewel Box cluster
The Jewel Box cluster is a bright and colorful open star cluster in the constellation Crux, renowned for its striking mix of blue and red stars visible even in small telescopes.
-
B.
Beti-Fang cluster
The Beti-Fang cluster is a group of closely related Bantu languages spoken primarily in Cameroon, Equatorial Guinea, and neighboring Central African regions.
-
C.
Trapezium Cluster
The Trapezium Cluster is a compact group of young, massive stars in the heart of the Orion Nebula that illuminates and shapes the surrounding star-forming region.
-
D.
Great Hercules Cluster
The Great Hercules Cluster is a bright, densely packed globular star cluster in the constellation Hercules, visible in small telescopes and one of the most prominent such clusters in the northern sky.
-
E.
Norma Cluster
Norma Cluster is a massive galaxy cluster located in the dense, obscured region of the sky known as the Zone of Avoidance and plays a key role in the gravitational dynamics of the local universe.
- 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: Butterfly Cluster Target entity description: The Butterfly Cluster is a bright open star cluster in the constellation Scorpius, noted for its distinctive butterfly-like shape and visibility to the naked eye in dark skies.
-
A.
Jewel Box cluster
The Jewel Box cluster is a bright and colorful open star cluster in the constellation Crux, renowned for its striking mix of blue and red stars visible even in small telescopes.
-
B.
Beti-Fang cluster
The Beti-Fang cluster is a group of closely related Bantu languages spoken primarily in Cameroon, Equatorial Guinea, and neighboring Central African regions.
-
C.
Trapezium Cluster
The Trapezium Cluster is a compact group of young, massive stars in the heart of the Orion Nebula that illuminates and shapes the surrounding star-forming region.
-
D.
Great Hercules Cluster
The Great Hercules Cluster is a bright, densely packed globular star cluster in the constellation Hercules, visible in small telescopes and one of the most prominent such clusters in the northern sky.
-
E.
Norma Cluster
Norma Cluster is a massive galaxy cluster located in the dense, obscured region of the sky known as the Zone of Avoidance and plays a key role in the gravitational dynamics of the local universe.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
Messier object
ⓘ
NGC object ⓘ astronomical object ⓘ open star cluster ⓘ |
| age_Myr | approximately 100 ⓘ |
| alsoKnownAs |
M6
ⓘ
linked to:
M26
Messier 6 ⓘ NGC 6405 ⓘ |
| angularSize_arcmin | 25 ⓘ |
| apparentMagnitudeRange | 4.2–4.5 ⓘ |
| apparentMagnitudeV | 4.2 ⓘ |
| bestObservedWith |
binoculars
ⓘ
small telescope ⓘ |
| bestSeenIn | summer ⓘ |
| brightestStar | BM Scorpii ⓘ |
| brightestStarApparentMagnitude | about 5.5 ⓘ |
| catalog |
Messier Catalogue
ⓘ
linked to:
Messier catalogue
New General Catalogue ⓘ |
| cataloguedBy | Charles Messier ⓘ |
| clusterType | loose open cluster ⓘ |
| constellation | Scorpius ⓘ |
| contains |
many B-type stars
ⓘ
red giant stars ⓘ |
| declination | −32° 13′ ⓘ |
| declinationEpoch | J2000 ⓘ |
| discovererNationality | Italian ⓘ |
| discoveryBy | Giovanni Battista Hodierna ⓘ |
| discoveryYear | before 1654 ⓘ |
| distanceFromEarth_ly | approximately 1600 ⓘ |
| distanceFromEarth_pc | approximately 490 ⓘ |
| galacticLatitude_deg | −3.3 ⓘ |
| galacticLongitude_deg | 330.8 ⓘ |
| hemisphereVisibility | southern celestial hemisphere ⓘ |
| locatedIn |
Milky Way
ⓘ
Sagittarius Arm of the Milky Way ⓘ
linked to:
Sagittarius Arm
|
| messierNumber | 6 ⓘ |
| metallicity | slightly above solar ⓘ |
| nearbyConstellationFeature | tail of Scorpius ⓘ |
| nearbyObject |
Messier 7
ⓘ
linked to:
Messier 6
|
| ngcNumber | 6405 ⓘ |
| notableFor | distinctive butterfly-like appearance in small instruments ⓘ |
| notableShape | butterfly-like pattern ⓘ |
| numberOfStars | more than 100 ⓘ |
| observedIn | optical wavelengths ⓘ |
| observingRequirement | dark skies recommended ⓘ |
| rightAscension | 17h 40m ⓘ |
| rightAscensionEpoch | J2000 ⓘ |
| skyLocationDescription | northwest of Shaula (Lambda Scorpii) ⓘ |
| visibility | visible to the naked eye in dark skies ⓘ |
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: Butterfly Cluster Description of subject: The Butterfly Cluster is a bright open star cluster in the constellation Scorpius, noted for its distinctive butterfly-like shape and visibility to the naked eye in dark skies.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.