Perseus Spiral Arm
E482627
The Perseus Spiral Arm is one of the major spiral arms of the Milky Way galaxy, located outside the Sun’s orbit and rich in star-forming regions and nebulae.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Perseus Arm of the Milky Way | 1 |
| Perseus Spiral Arm canonical | 1 |
| Perseus arm of the Milky Way | 1 |
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
spiral arm
ⓘ
structure in the Milky Way ⓘ |
| composition |
dust
ⓘ
gas ⓘ stars ⓘ |
| contains |
Auriga star-forming regions
ⓘ
Cassiopeia OB associations NERFINISHED ⓘ H II regions NERFINISHED ⓘ IC 1805 (Heart Nebula) NERFINISHED ⓘ IC 1848 (Soul Nebula) NERFINISHED ⓘ NGC 1499 (California Nebula) NERFINISHED ⓘ NGC 7538 star-forming region NERFINISHED ⓘ Perseus OB associations NERFINISHED ⓘ Perseus molecular cloud complex NERFINISHED ⓘ W3 star-forming region NERFINISHED ⓘ W4 star-forming region NERFINISHED ⓘ W5 star-forming region NERFINISHED ⓘ massive stars ⓘ molecular clouds ⓘ nebulae ⓘ star-forming regions ⓘ young star clusters ⓘ |
| distanceFromGalacticCenter | greater than the Sun’s galactocentric distance ⓘ |
| distanceFromSun | several kiloparsecs ⓘ |
| galacticLongitudeRange | spans a wide range of Galactic longitudes in the northern sky ⓘ |
| galacticRegionType | major spiral arm ⓘ |
| galacticStructureOrder | outer major arm relative to the Sun ⓘ |
| locatedIn | Milky Way disk NERFINISHED ⓘ |
| namedAfter | constellation Perseus ⓘ |
| observedIn |
infrared wavelengths
ⓘ
optical wavelengths ⓘ radio wavelengths ⓘ |
| orientation | roughly follows the Galactic plane ⓘ |
| partOf | Milky Way NERFINISHED ⓘ |
| positionRelativeToSun |
farther from the Galactic Center than the Sun
ⓘ
outside the Sun’s orbit ⓘ |
| relatedStructure |
Orion–Cygnus Spur
NERFINISHED
ⓘ
Sagittarius Spiral Arm NERFINISHED ⓘ |
| researchField | Galactic astronomy ⓘ |
| roleInGalaxy | site of ongoing star formation in the Milky Way ⓘ |
| spiralPatternRole | major component of the Milky Way spiral pattern ⓘ |
| studiedUsing |
VLBI parallax measurements
ⓘ
infrared surveys of young stellar objects ⓘ radio surveys of HI and CO ⓘ |
| tracedBy |
maser sources
ⓘ
molecular gas (CO) ⓘ neutral hydrogen (HI) ⓘ young massive stars ⓘ |
| visibleFrom | Earth NERFINISHED ⓘ |
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
NGC 281
this entity surface form:
Perseus arm of the Milky Way
this entity surface form:
Perseus Arm of the Milky Way