Monoceros Ring
E126288
The Monoceros Ring is a vast, ring-like stellar structure encircling the Milky Way, thought to be composed of stars stripped from the nearby Canis Major Dwarf Galaxy.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Monoceros Ring canonical | 6 |
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
Galactic stellar stream
ⓘ
ring-like structure ⓘ stellar structure ⓘ |
| alternateName |
Galactic Anticenter Stellar Structure
ⓘ
Monoceros Stream ⓘ |
| associatedWith | Canis Major Dwarf Galaxy ⓘ |
| classifiedAs |
outer halo substructure
ⓘ
tidal debris ⓘ |
| composedOf | stars ⓘ |
| consideredEvidenceFor | past merger events of the Milky Way ⓘ |
| debatedAs | possible warp or flare of the Galactic disk ⓘ |
| discoveredBy |
Brian Yanny
ⓘ
Heidi Jo Newberg ⓘ |
| discoveredIn | 2002 ⓘ |
| discoveredUsing | Sloan Digital Sky Survey ⓘ |
| distanceFromSun | approximately 10–20 kiloparsecs ⓘ |
| encircles |
Galactic thin disk
ⓘ
surface form:
Milky Way disk
|
| evidenceFor | ongoing accretion of dwarf galaxies by the Milky Way ⓘ |
| extendsOver | more than 100 degrees in Galactic longitude ⓘ |
| hasUncertain |
exact origin
ⓘ
total stellar mass ⓘ |
| kinematicsIndicate | accreted origin ⓘ |
| liesNear | Galactic anticenter ⓘ |
| locatedAbove | Galactic plane ⓘ |
| locatedAtGalactocentricRadius | approximately 15–20 kiloparsecs ⓘ |
| locatedBelow |
Galactic thin disk
ⓘ
surface form:
Galactic plane
|
| locatedBeyond | outer edge of the Milky Way disk ⓘ |
| locatedIn |
Milky Way
ⓘ
surface form:
Milky Way galaxy
|
| metallicity | low metallicity compared to the Sun ⓘ |
| observationalSignature | ring-like distribution of stars around the Galaxy ⓘ |
| observedAs | overdensity of F-type stars ⓘ |
| observedIn |
Monoceros
ⓘ
surface form:
Monoceros constellation region
|
| observedWith |
Two Micron All Sky Survey
ⓘ
surface form:
2MASS survey
Pan-STARRS survey ⓘ Sloan Digital Sky Survey ⓘ
surface form:
SDSS survey
|
| overlapsOnSkyWith |
Canis Major
ⓘ
surface form:
Canis Major constellation
Monoceros ⓘ
surface form:
Monoceros constellation
|
| partOf | Milky Way stellar halo ⓘ |
| relatedStructure |
Canis Major Overdensity
ⓘ
surface form:
Canis Major overdensity
Triangulum–Andromeda overdensity ⓘ |
| spans | both Northern and Southern Galactic hemispheres ⓘ |
| stellarPopulation | old stars ⓘ |
| supportsTheoryOf | hierarchical galaxy formation ⓘ |
| thoughtToOriginateFrom | Canis Major Dwarf Galaxy ⓘ |
| usedToStudy |
Galactic halo substructure
ⓘ
Milky Way outer disk structure ⓘ |
| wrapsAround | Galactic plane ⓘ |
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.