EBK THE COSMIC PERSPECTIVE
EBK THE COSMIC PERSPECTIVE
9th Edition
ISBN: 9780135161760
Author: Voit
Publisher: VST
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Chapter 6, Problem 41EAP

(a)

To determine

To Find: The type of observation thatscientistsneed to make to study how the upper hot atmosphere of a star changes with time.

(b)

To determine

To Find: The type of observation thatscientists need to make to learn the composition of a distant star.

(c)

To determine

To Find: The type of observation thatscientists need to make to determine how fast a distant galaxy is moving away from earth.

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3. The closest star to the Earth (other than the sun) is Alpha Centauri, which is 4.3 light years away from us. a. Consider the equation for parallax angle written in terms of au and pc (write it down). What is the parallax angle a in arcsec to Alpha Centauri as seen from Earth? Show your work and use complete sentences.
Your Question :help please answer in text form with proper workings and explanation for each and every part and steps with concept and introduction no AI no copy paste remember answer must be in proper format with all working!
Astronomers are always seeking to build bigger, more powerful telescopes, which will allow them to study faint galaxies that are very far away. Which of the following is the main reason they're so obsessed with studying very distant galaxies? Group of answer choices Light traveled much faster during the early history of the universe, so we can study how the speed of light has changed through time. Very distant galaxies are more likely to contain planets than the Milky Way is, so we have a better chance of detecting life in those galaxies than we do in our own galaxy. Since the light from these galaxies took so long to reach us, we're seeing them as they were when the universe was very young. Strangely, distant galaxies are more like our Milky Way than the Milky Way's `neighbor' galaxies are, and astronomers would like to figure out why this is.

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EBK THE COSMIC PERSPECTIVE

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