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symbo symbo
wrote...
Posts: 1970
Rep: 2 0
7 years ago
A coronal hole shows up most prominently on what kind of photograph?
A)   Red light of the first Balmer line of hydrogen, H, at 656.3 nm
B)   Radio wavelengths
C)   Any wavelength of visible light
D)   X ray
Textbook 
Discovering the Universe

Discovering the Universe


Edition: 7th
Authors:
Read 96 times
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hyponoticahyponotica
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Posts: 1396
7 years ago
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symbo Author
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7 years ago
This did it for me! Thank you
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