Zone of Avoidance
E517966
The Zone of Avoidance is a region of the sky heavily obscured by the Milky Way’s dust and stars, making observations of extragalactic objects within it particularly difficult.
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical concept
ⓘ
region of the sky ⓘ |
| alsoAffects | near‑infrared observations ⓘ |
| alsoKnownAs |
Zone of Avoidance of galaxies
NERFINISHED
ⓘ
galactic Zone of Avoidance NERFINISHED ⓘ |
| causeOfObscuration |
dense star fields in the Milky Way
ⓘ
interstellar dust in the Milky Way ⓘ |
| centeredOn | Galactic plane ⓘ |
| characterizedBy |
high extinction
ⓘ
high stellar density ⓘ |
| definedRelativeTo | Milky Way NERFINISHED ⓘ |
| dependsOn |
distribution of dust in the Milky Way
ⓘ
line of sight through the Galactic disk ⓘ |
| effect |
incompleteness of galaxy catalogs near the Galactic plane
ⓘ
reduced visibility of extragalactic objects ⓘ |
| hasConsequence |
biases in estimates of local gravitational potential
ⓘ
uncertainty in mass distribution near the Milky Way ⓘ |
| hasProperty |
direction‑dependent extinction
ⓘ
non‑uniform boundaries ⓘ |
| historicallyIdentifiedBy | optical galaxy counts ⓘ |
| isSubsetOf | celestial sphere ⓘ |
| lessSevereIn |
X‑ray wavelengths
ⓘ
radio wavelengths ⓘ |
| locatedIn | sky ⓘ |
| mainlyAffects | optical observations ⓘ |
| makesDifficult |
identification of galaxy clusters behind the Milky Way
ⓘ
mapping large‑scale structure of the Universe ⓘ |
| mitigatedBy |
infrared observations of galaxies
ⓘ
multi‑wavelength observations ⓘ radio observations of galaxies ⓘ |
| obscures |
background galaxies
ⓘ
background galaxy clusters ⓘ quasars behind the Milky Way ⓘ |
| observedUsing |
21‑cm neutral hydrogen surveys
ⓘ
X‑ray cluster surveys ⓘ infrared all‑sky surveys ⓘ |
| problemFor |
all‑sky galaxy redshift surveys
ⓘ
cosmic flow studies ⓘ reconstruction of the density field of nearby Universe ⓘ |
| relatedTo |
Great Attractor
NERFINISHED
ⓘ
Local Supercluster NERFINISHED ⓘ cosmic large‑scale structure ⓘ |
| requires | correction methods in cosmological analyses ⓘ |
| stillRelevantIn | modern all‑sky surveys ⓘ |
| studiedIn |
Galactic astronomy
ⓘ
cosmology ⓘ extragalactic astronomy ⓘ |
| typicalAngularWidth | about 10–20 degrees around the Galactic plane ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.