What are the approximate temperatures and depths of x-ray, visible, magnetograms, and H-alpha images?

This answer courtesy of Loren W. Acton, Montana State University.

 Image    Temperature  Heights above where you see with your 
                       naked eye

visible        5700K   h = 0 km; the solar "surface"

magnetograms   5300K   h = a few hundred km above the solar 

H-alpha       10,000K  h = 1000 - 10,000 km above the solar 

X-ray      1,000,000K  h = 1000 - 1,000,000 km above the solar 
	to 5,000,000K      "surface"

Thanks to Dick Canfield who helped me with the lower levels.

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Special Thanks to L. Acton.