Write an essay (at least 3 paragraphs) describing the composition of stars.
What are the colors in the spectrum? (Hint: there are 7 colors and they can be remembered by a name, ' Roy G Biv'.)
Anna Jump Cannon is the lady scientist responsible for developing the current classification scheme of dividing stars into their spectral classes (O,B,A,F,G,K,M). Write a research paper on her life and work.
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