Statements (20)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:solar_filter
gptkb:prism |
| gptkbp:absorbedBy |
gptkb:radiation_therapy
infrared radiation |
| gptkbp:alternativeTo |
gptkb:solar_filter
|
| gptkbp:marketedAs |
gptkb:Baader_Planetarium
gptkb:Lunt_Solar_Systems |
| gptkbp:material |
gptkb:glass
|
| gptkbp:namedAfter |
gptkb:William_Herschel
|
| gptkbp:notRecommendedFor |
gptkb: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 |
gptkb:astronomer
solar observation |
| gptkbp:bfsParent |
gptkb:Sir_John_Frederick_Charles_Herschel
|
| gptkbp:bfsLayer |
6
|
| http://www.w3.org/2000/01/rdf-schema#label |
Herschel wedge
|