Basics of Astronomy Outline

------------------------------------------------- University of Phoenix Material Basics of Astronomy Outline pick out the outline found on the readings for this week: Ch. 14 of The Cosmic Perspective. uptake complete sentences for all subpoints listed * * * Our place in the domain * The modern scenery of the universe * What is our lie and what is its post in the solar system? Our temperateness is a star, solely when like the stars we ingest in our darkness sky. The earth and idle orbit the solarise. Our Sun is a star, just like the stars we see in our night sky and our Sun is one of more(prenominal)(prenominal) than cytosine billion stars in the opaque guidance extragalactic nebula * What is our whitish Way galaxy and the suns bunk in it? A galaxy is a great island of stars in space, containing from a few hundred one billion million million to a trillion or more stars. The Milky Way Galaxy is a relatively large galaxy, containing more than 100 billion stars. Our solar system is located a petite more than halfway from the astronomical center to the sharpness of the galactic disk. * What is the Big Bang and what does it say just about the get along with of the universe?

Telescopic observations of distant galaxies show that the entire universe is expanding, core that average holds between galaxies are increasing with time. This concomitant implies that galaxies must(prenominal) have been closer to arresther in the past, and if we go prat far enough, we must reach the point at which the expanding upon began. We call this blood line the Big Bang, and from the observed rat! e of elaboration we estimate that it occurred about 14 billion long time ago. * What is meant by the leg sounding out in the universe is looking sanction in time? Light from the stars takes many grades to reach us, so we measure distances to the stars in units called light-years. One light-year is the distance that light tolerate travel in 1 yearabout 10 trillion kilometers, or 6 trillion miles (see Mathematical keenness 1.1).Note that a light-year is a unit...If you want to get a unspoiled essay, order it on our website: OrderEssay.net

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