Statements (23)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gravitational lens
|
| gptkbp:alsoKnownAs |
gptkb:Q2237+030
|
| gptkbp:catalogue |
gptkb:QSO_2237+0305
|
| gptkbp:discoveredBy |
gptkb:John_Huchra
|
| gptkbp:discoveredIn |
1985
|
| gptkbp:distanceFromEarth |
about 8 billion light-years (quasar)
|
| gptkbp:distanceToLensingGalaxy |
about 400 million light-years
|
| https://www.w3.org/2000/01/rdf-schema#label |
Einstein cross
|
| gptkbp:imageArrangement |
cross-shaped
|
| gptkbp:lensedObjectType |
gptkb:Dragon
|
| gptkbp:lensingGalaxyName |
gptkb:ZW_2237+030
|
| gptkbp:lensingGalaxyType |
foreground galaxy
|
| gptkbp:locatedIn |
constellation Pegasus
|
| gptkbp:namedAfter |
gptkb:Albert_Einstein
|
| gptkbp:numberOfRooms |
4
|
| gptkbp:observedBy |
gptkb:Hubble_Space_Telescope
|
| gptkbp:redshiftOfLensingGalaxy |
0.0394
|
| gptkbp:redshiftOfQuasar |
1.695
|
| gptkbp:significance |
first discovered gravitationally lensed quasar with four images
|
| gptkbp:usedFor |
measuring Hubble constant
studying gravitational lensing |
| gptkbp:bfsParent |
gptkb:gravitational_lens
|
| gptkbp:bfsLayer |
6
|