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APOD Nov 15 2013
The Flash Spectrum of the Sun
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This is the flash of the visible spectrum of the Sun during the total eclipse that occurred on November 3. This image was caught while the solar eclipse was traveling over Africa. The visible spectrum is spread by diffraction due to the moon covering the solar photosphere. The strongest emission lines are due to Hydrogen atoms that produce the red alpha emission to the right and the blue beta emission to the left. The yellow emission comes from the helium atoms. This provides an awesome insight into what the visible spectrum of the Sun would look like during a solar eclipse.
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