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.
Aliases (1)
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
spiral arm
→
structure of the Milky Way → |
| alsoKnownAs |
Scutum–Crux–Centaurus Arm
→
|
| armType |
major spiral arm
→
|
| componentOf |
Milky Way spiral structure
→
|
| connectedTo |
Galactic bar
→
|
| contains |
H II regions
→
Scutum Star Cloud → 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
→
Milky Way inner region → |
| namedAfter |
Centaurus constellation
→
Scutum constellation → |
| observedIn |
infrared wavelengths
→
optical wavelengths → radio wavelengths → |
| orientation |
roughly along Galactic longitude 20–50 degrees in inner Galaxy
→
|
| originatesNear |
Galactic 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
→
|
Referenced by (2)
| Subject (surface form when different) | Predicate |
|---|---|
|
Scutum–Centaurus Arm
("Scutum–Crux–Centaurus Arm")
→
|
alsoKnownAs |
|
Milky Way
→
|
contains |