Statements (18)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
spectrometer
|
| gptkbp:containsElement |
calcium
|
| gptkbp:discoveredBy |
Joseph Fraunhofer
|
| gptkbp:feature |
gptkb:Fraunhofer_lines
|
| https://www.w3.org/2000/01/rdf-schema#label |
Ca II H and K lines
|
| gptkbp:ionization_state |
singly ionized
|
| gptkbp:measures |
interstellar medium
stellar activity |
| gptkbp:region |
near-ultraviolet
|
| gptkbp:spectralType |
absorption lines
|
| gptkbp:transition |
electron transition in Ca II ion
|
| gptkbp:used_in |
gptkb:astronomy
stellar classification chromospheric activity studies |
| gptkbp:wavelengthRange |
393.4 nm
396.8 nm |
| gptkbp:bfsParent |
gptkb:A_High_Dispersion_Study_of_the_Ca_II_H_and_K_Lines_in_the_Solar_Spectrum
|
| gptkbp:bfsLayer |
6
|