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In: Physics

Discuss stellar parallax, how it works, and how it is used as a tool in astronomy....

  1. Discuss stellar parallax, how it works, and how it is used as a tool in astronomy.

  1. Which spectral class has the highest surface temperature?

Which spectral class has the coolest surface temperature?

What is the spectral class of the sun?

  1. One of our tools for measuring cosmic distances is Cepheid Variable Stars. Explain how they allow the determination of distances.

  1. The Hertzsprung-Russell diagram is a tool as useful to astronomers as the Periodic Table is to chemists. Explain the structure of the H-R diagram and what it tells us.

       

  1. There are several key steps necessary for the creation of a star. Provide an overview description of these key steps.

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