Astro Quiz II - Spectrum history

Here is another quiz for your enjoyment. The famous philosopher Auguste Comte stated in his book Positive Philosophy the negative view (why skip any irony :)) that we would never be able to determine the chemical nature of stars. It wasn't long before astronomers do what they do best.. discover!

Here's a small taste of that discovery....




As before, ignore online searches; wrong guesses are welcome.

Just put the question's number followed by your guess. Ex. 1c

[The background image, though diluted to allow easier reading, is from Kitt Peak and is an incredible image of the solar spectrum.]

George
 

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