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The top documents tagged [yellow photosphere]
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The Sun. Of medium size by star standards, it is composed mainly of hydrogen (73 percent by mass) and helium (25 percent by mass)
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Lesson 3. At the center of our solar system is the Sun which is a typical medium sized star. Composed mainly of Hydrogen (73% by mass), 23% helium
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The Solar System
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Our Sun A medium sized star. Our Sun Our sun is a typical medium sized star. A star is a hot ball of plasma that shines because nuclear fusion is taking
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