Statements (17)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
photometric filter
|
| gptkbp:centerFrequency |
about 545 THz
|
| gptkbp:centerWavelength |
550 nm
|
| gptkbp:correspondsTo |
visual (green) light
|
| https://www.w3.org/2000/01/rdf-schema#label |
V-band
|
| gptkbp:introduced |
gptkb:Harold_Johnson
|
| gptkbp:introducedIn |
1950s
|
| gptkbp:letter |
V
|
| gptkbp:memoryBusWidth |
about 90 nm
|
| gptkbp:partOf |
gptkb:UBV_photometric_system
|
| gptkbp:usedFor |
measuring stellar magnitudes
|
| gptkbp:usedIn |
gptkb:astronomy
photometry standard star calibration variable star observation |
| gptkbp:bfsParent |
gptkb:satellite
|
| gptkbp:bfsLayer |
4
|