Question

Read the following passage from Open Clusters.

Answer 1

As the stars fuse their hydrogen fuel to produce energy, they age at different rates, depending on their initial mass. More massive stars burn their fuel faster because of the higher pressures and temperatures at their cores. As a consequence, massive stars live fast and die young, at ages of millions of years. Compare this with the hydrogen-burning lifetime of the Sun, which will be about 10 billion years. Enjoy the views while they last!
The Pleiades of the winter sky are a well-known open cluster. In Japan, this cluster is called “Subaru,” and you will see these stars represented in the badges on cars of that make. The stars in the badge are connected with lines because Subaru means necklace in Japanese. The Greek story is that the Pleiades were seven sisters who were turned into doves and flew up into the sky and became the star cluster.

Answer 2

In a separate document, write two short paragraphs in which you:
Explain what factors determine the lifespan of a star.
Give an idea of the relative lifespan of our own Sun.
Explain how star clusters fit into the mythologies of different cultures.

Answer 3

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Answer 4

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Answer 5

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