Assignment 1 - Question#1, Page 18 Imagine yourself on a...

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Question#1, Page 18 Imagine yourself on a planet orbiting a star in a faraway galaxy. What does cosmological principle tell about the way you would perceive the universe from this distance location? According to Cosmological principle, what we see is representative of what the universe is generally like and we can use the same physical law to understand what goes on in the centers of stars or in the heart of distant galaxies. When, I am on a planet orbiting a star in a faraway galaxy, I would perceive the same universe, nothing more or less. Question # 6, Page 56 Why do we not see a lunar eclipse each time the Moon is full or witness a solar eclipse each time the Moon is new? The Moon’s orbit does not lie on exactly the same plane as the orbit of Earth. The plane of the Moon’s orbit about Earth is inclined by about 5.2° with respect to the plane of Earth’s orbit about the sun. A solar eclipse or lunar eclipse cannot be seen because the shadow of a new Moon passed above or below Earth. Only time we can see a lunar or solar eclipse when the line of
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This note was uploaded on 10/19/2011 for the course ASTRONOMY 1001 taught by Professor Barry during the Spring '11 term at Dalhousie.

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Assignment 1 - Question#1, Page 18 Imagine yourself on a...

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