Statements (18)
| Predicate | Object | 
|---|---|
| gptkbp:instanceOf | gptkb:gravitationally_lensed_quasar gptkb:Dragon | 
| gptkbp:alternativeName | QSO B1115+080 SDSS J1118+2807 | 
| gptkbp:apparentMagnitude | 16.1 | 
| gptkbp:discoveredBy | gptkb:Palomar-Green_survey | 
| gptkbp:hasEinsteinRing | yes | 
| gptkbp:hasLensedImages | 4 | 
| gptkbp:hasTimeDelayBetweenImages | yes | 
| gptkbp:isLensedBy | foreground galaxy | 
| gptkbp:lensingGalaxyRedshift | 0.31 | 
| gptkbp:locatedIn | constellation Leo | 
| gptkbp:redshift | 1.722 | 
| gptkbp:spectralType | gptkb:QSO | 
| gptkbp:usedFor | measuring Hubble constant | 
| gptkbp:bfsParent | gptkb:BD+28_2292 | 
| gptkbp:bfsLayer | 8 | 
| https://www.w3.org/2000/01/rdf-schema#label | PG 1115+280 |