Statements (20)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
prism
solar filter |
| gptkbp:absorbedBy |
infrared radiation
radiation therapy |
| gptkbp:alternativeTo |
solar filter
|
| https://www.w3.org/2000/01/rdf-schema#label |
Herschel wedge
|
| gptkbp:marketedAs |
gptkb:Baader_Planetarium
gptkb:Lunt_Solar_Systems |
| gptkbp:material |
gptkb:glass
|
| gptkbp:namedAfter |
gptkb:William_Herschel
|
| gptkbp:notRecommendedFor |
astronomer
|
| gptkbp:reduces |
intensity of sunlight
|
| gptkbp:requires |
additional neutral density filter
|
| gptkbp:transmittedBy |
small fraction of light
|
| gptkbp:usedBy |
amateur astronomers
professional astronomers |
| gptkbp:usedFor |
astronomer
solar observation |
| gptkbp:bfsParent |
gptkb:Sir_John_Frederick_Charles_Herschel
|
| gptkbp:bfsLayer |
6
|