Zone of Avoidance of the Milky Way
E517968
The Zone of Avoidance of the Milky Way is a region of the sky heavily obscured by our galaxy’s disk, where dust and stars block the view of background galaxies and galaxy clusters.
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical region
ⓘ
region of the sky ⓘ |
| affects |
measurement of galaxy dipole
ⓘ
reconstruction of density field in the local universe ⓘ |
| alsoKnownAs |
Galactic Zone of Avoidance
NERFINISHED
ⓘ
Zone of Avoidance NERFINISHED ⓘ |
| angularExtent | covers a significant fraction of the sky ⓘ |
| boundaryDependsOn |
extinction threshold used
ⓘ
observing wavelength ⓘ |
| cause |
confusion from foreground stars
ⓘ
dust extinction in the Galactic disk ⓘ |
| centeredOn | Galactic plane ⓘ |
| characterizedBy |
high extinction
ⓘ
high stellar density ⓘ |
| coordinateSystem | Galactic coordinates ⓘ |
| definedRelativeTo | Milky Way NERFINISHED ⓘ |
| discoveryMethod | optical galaxy counts ⓘ |
| effect |
blocks view of background galaxies
ⓘ
blocks view of background galaxy clusters ⓘ |
| hasUncertainBoundaries | yes ⓘ |
| historicallyNotedBy | early 20th-century astronomers ⓘ |
| isPartOf | observational cosmology challenges ⓘ |
| locatedIn | sky ⓘ |
| obscuredBy |
Milky Way disk
NERFINISHED
ⓘ
interstellar dust ⓘ stars of the Milky Way ⓘ |
| observedMoreEasilyAt |
X-ray wavelengths
ⓘ
infrared wavelengths ⓘ radio wavelengths ⓘ |
| problemFor |
mapping large-scale structure in optical wavelengths
ⓘ
optical surveys of galaxies ⓘ |
| purposeOfStudy |
to complete all-sky maps of galaxies
ⓘ
to trace hidden mass concentrations ⓘ |
| relatedTo |
Great Attractor
NERFINISHED
ⓘ
cosmic large-scale structure ⓘ local universe galaxy distribution ⓘ |
| relevance |
correcting biases in all-sky galaxy catalogs
ⓘ
understanding mass distribution near the Milky Way ⓘ |
| studiedUsing |
21-cm neutral hydrogen surveys
ⓘ
X-ray cluster surveys ⓘ near-infrared galaxy surveys ⓘ |
| symmetry | roughly symmetric about the Galactic plane ⓘ |
| typicalLatitudeExtent | within about 5–10 degrees of the Galactic plane ⓘ |
| visibilityOfBackgroundGalaxies |
partially restored in infrared
ⓘ
partially restored in radio ⓘ strongly reduced in optical light ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.