Statements (18)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
scientific instrument
|
| gptkbp:aperture |
8 inches
|
| gptkbp:built |
1850
|
| gptkbp:builtBy |
gptkb:George_Biddell_Airy
|
| gptkbp:displayedAt |
gptkb:National_Maritime_Museum,_Greenwich
|
| https://www.w3.org/2000/01/rdf-schema#label |
Great Meridian Circle
|
| gptkbp:locatedIn |
gptkb:Royal_Observatory,_Greenwich
|
| gptkbp:material |
brass
|
| gptkbp:partOf |
gptkb:Royal_Observatory,_Greenwich
|
| gptkbp:replacedBy |
gptkb:Ramsden_Zenith_Sector
|
| gptkbp:significance |
established the Greenwich Prime Meridian
|
| gptkbp:status |
gptkb:museum
|
| gptkbp:telescopeFocalLength |
11 feet
|
| gptkbp:usedFor |
defining the Prime Meridian
measuring star positions |
| gptkbp:usedUntil |
1950s
|
| gptkbp:bfsParent |
gptkb:Observatorio_Astronómico_de_Córdoba
|
| gptkbp:bfsLayer |
7
|