Hydrogen-Alpha line
This is an old revision of this page, as edited by Ed Poor (talk | contribs) at 17:08, September 15, 2011. It may differ significantly from current revision.
"The line that appears in the red part of the spectrum is created when an electron moves between the second and third orbit (N=2 and N=3) and the wavelength at which this occurs is 656nm. It is this line that is called the Hydrogen alpha line ..." [1]