Statements (24)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:spectral_line
|
| gptkbp:affiliatedWith |
gptkb:Balmer_series
|
| gptkbp:color |
red
|
| gptkbp:discoveredBy |
gptkb:Anders_Ångström
|
| gptkbp:discoveredIn |
1868
|
| gptkbp:emits |
gptkb:hydrogen_atom
|
| gptkbp:energyDifference |
1.89 eV
|
| gptkbp:measures |
redshift
radial velocity |
| gptkbp:symbol |
gptkb:Hα
|
| gptkbp:transition |
n=3 to n=2
|
| gptkbp:usedIn |
gptkb:astronomy
spectroscopy solar observation |
| gptkbp:usedToObserve |
gptkb:H_II_regions
solar prominences star formation regions |
| gptkbp:wavelengthRange |
656.28 nm
|
| gptkbp:bfsParent |
gptkb:NGC_1499
gptkb:NGC_7009 gptkb:spectroheliograph gptkb:Solar_Flare_Telescope |
| gptkbp:bfsLayer |
7
|
| https://www.w3.org/2000/01/rdf-schema#label |
H-alpha
|