Yep. Three of the four EIT lines are from Iron (171 Angstrom, 195 Angstrom and 284 Angstrom) The fourth, at 304 Angstrom, is a helium emission line. One problem is that what we're seeing in these images is the sun's atmosphere or corona, not its surface. Also, the iron lines represent higher temperatures than the helium one (on the order of 1 million Kelvin according to the About these images page). The ability of iron to exist as a solid at these temperatures is left as an exercise for the student. The SOHO site also states that the higher the temperature, the higher up we are in the corona. So the iron SOHO observes is actually not at the sun's surface, but high up in its atmosphere.

Again Mike, this may not be your interpretation of the images, but it seems a reasonable conclusion given your statements. I invite you to correct any misrepresentations on my, and Baloo's, part.

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"I often say that when you can measure what you are speaking about, and express it in numbers, you know something about it; but when you cannot measure it, when you cannot express it in numbers, your knowledge is of a meagre and unsatisfactory kind." - William Thompson, 1st Baron Lord Kelvin

"If it was so, it might be, and if it were so, it would be, but as it isn't, it ain't. That's logic!" - Tweedledee

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