Sagittarius Dwarf Spheroidal Galaxy
E21424
The Sagittarius Dwarf Spheroidal Galaxy is a small, elongated satellite galaxy currently being tidally disrupted and absorbed by the Milky Way.
All labels observed (8)
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
dwarf spheroidal galaxy
ⓘ
satellite galaxy ⓘ stellar stream progenitor ⓘ |
| alsoKnownAs |
SagDEG
ⓘ
Sagittarius Dwarf Spheroidal Galaxy ⓘ
surface form:
Sagittarius Dwarf Elliptical Galaxy
Sagittarius Dwarf Spheroidal Galaxy ⓘ
surface form:
Sagittarius dSph
|
| associatedGlobularCluster |
Arp 2
ⓘ
M54 ⓘ Terzan 7 ⓘ Terzan 8 ⓘ |
| belongsTo | Local Group ⓘ |
| contains |
globular clusters
ⓘ
metal-poor stars ⓘ old stellar population ⓘ |
| darkMatterDominated | true ⓘ |
| discoveredBy |
Geraint F. Lewis
ⓘ
Michael J. Irwin ⓘ Rodrigo Ibata ⓘ |
| discoveryMethod | star count overdensity in Milky Way halo ⓘ |
| discoveryYear | 1994 ⓘ |
| disruptionCause | Milky Way tidal forces ⓘ |
| distanceFromEarth_approx | 70000 light-years ⓘ |
| distanceFromGalacticCenter_approx | 16000–20000 light-years ⓘ |
| environment | Milky Way satellite system ⓘ |
| forms | Sagittarius Stream ⓘ |
| galacticComponent | Milky Way stellar halo ⓘ |
| hostGalaxy | Milky Way ⓘ |
| importanceInAstrophysics |
used to probe Milky Way dark matter halo
ⓘ
used to study galaxy accretion and tidal disruption ⓘ |
| interactionWithMilkyWay | currently being accreted by the Milky Way ⓘ |
| isSatelliteOf | Milky Way ⓘ |
| kinematics | shows tidal tails extending around the Milky Way ⓘ |
| locatedIn |
Sagittarius
ⓘ
surface form:
Sagittarius constellation
|
| luminosityClass | low-luminosity galaxy ⓘ |
| metallicity | low average metallicity compared to the Sun ⓘ |
| morphologicalType | dSph ⓘ |
| observedIn |
infrared wavelengths
ⓘ
optical wavelengths ⓘ radio wavelengths ⓘ |
| orbitalPlane | nearly polar orbit around Milky Way ⓘ |
| orbitalStatus | being tidally disrupted by the Milky Way ⓘ |
| roleInGalaxyEvolution |
contributes globular clusters to Milky Way system
ⓘ
contributes stars to Milky Way halo ⓘ |
| shape | elongated ⓘ |
| starFormationActivity | little or no current star formation ⓘ |
| stellarMass_approx | 10^7 solar masses ⓘ |
| tidalDebris | stellar streams wrapping around the Milky Way ⓘ |
| visibility | obscured by Milky Way disk and bulge ⓘ |
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: Sagittarius Dwarf Spheroidal Galaxy Description of subject: The Sagittarius Dwarf Spheroidal Galaxy is a small, elongated satellite galaxy currently being tidally disrupted and absorbed by the Milky Way.
Referenced by (32)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Sagittarius dSph
this entity surface form:
Sagittarius Dwarf Elliptical Galaxy
this entity surface form:
Sagittarius Dwarf Elliptical Galaxy
this entity surface form:
Sagittarius Dwarf Elliptical Galaxy
this entity surface form:
Sagittarius Dwarf Galaxy
this entity surface form:
Sagittarius Dwarf Spheroidal Galaxy core
this entity surface form:
Sagittarius Dwarf Elliptical Galaxy
this entity surface form:
Sagittarius Dwarf Spheroidal Galaxy globular cluster system
this entity surface form:
Sagittarius dwarf spheroidal galaxy
this entity surface form:
Sagittarius Dwarf Spheroidal Galaxy system