Statements (22)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
spectral line
|
| gptkbp:category |
absorption line
emission line |
| gptkbp:color |
red
|
| gptkbp:containsElement |
hydrogen
|
| gptkbp:discoveredBy |
gptkb:Anders_Ångström
|
| gptkbp:frequency |
4.57×10^14 Hz
|
| https://www.w3.org/2000/01/rdf-schema#label |
Hα
|
| gptkbp:powerSource |
1.89 eV
|
| gptkbp:series |
gptkb:Balmer_series
|
| gptkbp:symbol |
gptkb:Hα
|
| gptkbp:transition |
n=3 to n=2
|
| gptkbp:usedFor |
studying star formation
mapping H II regions observing solar prominences |
| gptkbp:usedIn |
gptkb:astronomy
astrophysics solar physics |
| gptkbp:wavelengthRange |
656.28 nm
|
| gptkbp:bfsParent |
gptkb:H-alpha_radiation
gptkb:H-alpha |
| gptkbp:bfsLayer |
7
|