Foundations of Astronomy
13th Edition
ISBN: 9781305079151
Author: Michael A. Seeds, Dana Backman
Publisher: Cengage Learning
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Chapter 10, Problem 10RQ
To determine
The reason for seeing distant stars redder than from their expected spectrum.
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Hertzsprung-Russell Diagram
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Surface Temperature (C)
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What is the color of the stars shown on the diagram that have the highest surface temperature?
O red
O yellow
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Brightness
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Hertzsprung-Russell Diagram
Blue or blue-white
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Supergiants
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Sun O
Alpho Centaur B
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Surface Temperature ('C)
What is the color of the stars shown on the diagram that have the lowest surface temperature?
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Chapter 10 Solutions
Foundations of Astronomy
Ch. 10 - Prob. 1RQCh. 10 - Prob. 2RQCh. 10 - Prob. 3RQCh. 10 - I am a cloud containing lots of dust, and I appear...Ch. 10 - Prob. 5RQCh. 10 - Prob. 6RQCh. 10 - Prob. 7RQCh. 10 - Prob. 8RQCh. 10 - Prob. 9RQCh. 10 - Prob. 10RQ
Ch. 10 - Prob. 11RQCh. 10 - Prob. 12RQCh. 10 - Prob. 13RQCh. 10 - Prob. 14RQCh. 10 - Why is the ISM transparent at near-infrared and...Ch. 10 - Prob. 16RQCh. 10 - Prob. 17RQCh. 10 - Prob. 18RQCh. 10 - Prob. 19RQCh. 10 - Prob. 20RQCh. 10 - Prob. 21RQCh. 10 - Prob. 22RQCh. 10 - Name two processes (or objects) that remove...Ch. 10 - Prob. 24RQCh. 10 - Prob. 25RQCh. 10 - Prob. 26RQCh. 10 - Prob. 1DQCh. 10 - Prob. 2DQCh. 10 - Prob. 3DQCh. 10 - Prob. 4DQCh. 10 - Prob. 5DQCh. 10 - Prob. 6DQCh. 10 - Prob. 1PCh. 10 - Prob. 2PCh. 10 - Prob. 3PCh. 10 - Prob. 4PCh. 10 - Prob. 5PCh. 10 - The number density of air in a childs balloon is...Ch. 10 - Calculate the frequency in megahertz (MHz) of the...Ch. 10 - Prob. 8PCh. 10 - Prob. 9PCh. 10 - Prob. 10PCh. 10 - Prob. 11PCh. 10 - Prob. 1LTLCh. 10 - Prob. 2LTLCh. 10 - Prob. 3LTLCh. 10 - Prob. 4LTLCh. 10 - Prob. 5LTL
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- Hertzsprung-Russell Diagram Blue or blue white White Vellow Red orange Red ORian Superglants Beleigrre Main Sequence Alderaron Glants Alpho Cetaut. E Sirius White 5,000 3,000 10,000 Surface Temperature ("C) 50.000 20.000 6,000 What is the color of the stars shown on the diagram that have the lowest surface temperature? O red O yellow O blue O white Brightness Increasingarrow_forwardHertzsprung-Russell Diagram Bhue or blue white White Vellow Red-orange Red ORigel Superglants Beteignune Main Sequence Aldebaran Glants Sun Alpho Centour B Sinus B White Dwarfs 50.000 20,000 10,000 Surface Temperature ('C) 6.000 5,000 3.000 Most of the stars shown on the diagram are classified as which type of star? O white dwarf O main sequence O red giant O super giant Brightness Increasing-arrow_forwardHertzsprung-Russell Diagram Blue or blue-white White Yellow Red orange Red Superglants Beleigese Main Sequene Aldenaran Glants Suno Aipho CetorE Sinus B White Dwarfs 50,000 20,000 10.000 6,000 5,000 3,000 Surface Temperature (C) Which star listed below is the brightest? Sun O Sirius B O Betelgeuse O Rigel Brightnessarrow_forward
- The surface of a star usually has the highest temperature O True O Falsearrow_forwardMany of the bright stars in the night sky are highly luminous normal blue stars (such as Acrux), and others are blue giants (such as Rigel) or red giants (such as Betelgeuse). Generally, such stars have a luminosity of 103 to 105 times that of our Sun! Ignoring any effects from our atmosphere, how bright would a star with a luminosity of 8380 solar luminosities be if it were located 620 light years from Earth? (You will need to convert some values.) W/m² For comparison, if you were 1 meter from a regular 100 W light bulb, the brightness would be 7.96 W/ m². (Since stars are not this bright, your answer should be considerably less!) Kind of amazing you can see these things, isn't it?arrow_forwardHertzsprung-Russell Diagram Blue White Yellow Red-orange Red Beteigruse Aldebaran Glants White Dwarfs 50.000 20,000 10,000 5.000 3,000 Surface Temperature ('C) Which star listed below is the brightest? O Sun O Sirius B O Betelgeuse O Rigel e0. buseanuarrow_forward
- Hertzsprung-Russell Diagram Blue or blue white White Vellow Red orange Red Superglants Beleigeurse Maln Sequence Aldebaran Glants Suno Aipho Centoun S Sinus B White Dwarfs 50,000 20,000 10.000 6,000 5,000 3,000 Surface Temperature ("C) Most of the stars shown on the diagram are classified as which type of star? O white dwarf O main sequence O red giant super giant Brightnessarrow_forwardReview this spectral data for five stars. Which is the hottest? Coolest? Most luminous? Least luminous? In each case, give your reasoning.arrow_forwardHow would two stars of equal luminosity-one blue and the other red-appear in an image taken through a filter that passes mainly blue light? How would their appearance change in an image taken through a filter that transmits mainly red light?arrow_forward
- Describe the spectrum of each of the following: A. starlight reflected by dust, B. a star behind invisible interstellar gas, and C. an emission nebula.arrow_forwardWhat causes reddening of starlight? Explain how the reddish color of the Sun’s disk at sunset is caused by the same process.arrow_forwardAn astronomer is investigating a faint star that has recently been discovered in very sensitive surveys of the sky. The star has a magnitude of 16. How much less bright is it than Antares, a star with magnitude roughly equal to 1?arrow_forward
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