Perhaps worth adding an actual ref to the image page, not just the equation. Beyond that I'm not entirely sure what to make of this in terms of FPC. Without doing the calculations I'll assume it's accurate and informative. On the other hand I'm not sure there's enough info provided in the caption/image page/article. For example what is Ly-α? OK, so it's the alpha line of the Lyman series, but how am I supposed to know this, and why is it significant enough to be labelled? It's briefly discussed elsewhere in the article, but isn't that clear on the diagram. It's also unclear why some of the spectral lines are quite wide, and the wider ones seem to fade off in a gradient - perhaps where higher value lines merge at this scale, but what's with the gradient, and again, how are we supposed to know? Also I think your scale should be a different colour from any of the series (the scale and Balmer series are both black). I'm nitpicking, but that will happen at FPC, especially for a relatively simple diagram. I wouldn't say not to nominate, but couldn't really say how it would go. --jjron (talk) 14:13, 7 June 2009 (UTC)[reply]