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It would be useful to discuss the meaning of the X and Y axis in the graphic. I assume the Y axis represents frequency (due to the use of colors), but it is unclear what the X axis represents.
I believe that the X axis represents the elements (from Hydrogen to ?). MichaelGoldshteyn 17:43, 3 October 2006 (UTC)
What are you talking about? Its all frequency. its just a looped continuous spectrum. --Deglr6328 10:55, 19 October 2006 (UTC)
G' or f?
In the "Naming" section the line betreen G end e is called G', but in the top image  it's marked as f. Also in this page  it's called f (visible hydrogen spectrum lines correspond to lines C, F, f and h, at the bottom of the page), while wiki page currently says they correspond to C, F, G' and h. Can someone explain what's begind this? Should it be called G'/f to avoid confusion or maybe only f? — Preceding unsigned comment added by 126.96.36.199 (talk) 11:15, 3 July 2014 (UTC)
O2 is a compound
Adding image with spectrum as you can see it visually with a prism
I think it would be helpful to add a picture of the solar spectrum from red to violet as you would see it with a prism. Makes the Fraunhofer lines more concrete than than a graph with intensity against wavelength.Arjen Dijksman (talk) 14:40, 6 March 2009 (UTC)
- Looks like someone has done it with (Fraunhofer lines.svg) - Rod57 (talk) 01:06, 26 February 2015 (UTC)
More precise information
It is written in the aricle, that Frauenhofer discovered 570 absorption lines. Were they all within the visible part of the solar spectrum? —Preceding unsigned comment added by 188.8.131.52 (talk) 03:53, 7 November 2009 (UTC)
How wide and deep are the lines ?
Wavelengths in vacuum or air?
Presumably the wavelengths given here are measured in "standard air," not vacuum. The article really needs to say that! And even better would be to also provide information (or a link to information) about converting to vacuum wavelengths. — Preceding unsigned comment added by Srw137 (talk • contribs) 23:38, 1 April 2020 (UTC)