![Astronomy](https://www.bartleby.com/isbn_cover_images/9781938168284/9781938168284_largeCoverImage.gif)
Astronomy
1st Edition
ISBN: 9781938168284
Author: Andrew Fraknoi; David Morrison; Sidney C. Wolff
Publisher: OpenStax
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 15, Problem 4E
Why do sunspots look dark?
Expert Solution & Answer
![Check Mark](/static/check-mark.png)
Trending nowThis is a popular solution!
![Blurred answer](/static/blurred-answer.jpg)
Students have asked these similar questions
why is the sun hot?
Why does it take so long for the energy produced in the Sun's core to reach the surface?
Why is nearly all of the Sun's energy produced in the inner 1.5% of its volume?
Chapter 15 Solutions
Astronomy
Ch. 15 - Describe the main differences between the...Ch. 15 - Describe how energy makes its way from the nuclear...Ch. 15 - Make a sketch of the Sun’s atmosphere showing the...Ch. 15 - Why do sunspots look dark?Ch. 15 - Which aspects of the Sun’s activity cycle have a...Ch. 15 - Summarize the evidence indicating that over...Ch. 15 - What it the Zeeman effect and what does it tell us...Ch. 15 - Explain how the theory of the Sun’s dynamo results...Ch. 15 - Compare and contrast the four different types of...Ch. 15 - What are the two sources of particles coming from...
Ch. 15 - How does activity on the Sun affect human...Ch. 15 - How does activity on the Sun affect natural...Ch. 15 - Table 15.1 indicates that the density of the Sun...Ch. 15 - Starting from the core of the Sun and going...Ch. 15 - Since the rotation period of the Sun can be...Ch. 15 - Suppose an (extremely hypothetical) elongated...Ch. 15 - The text explains that plages are found near...Ch. 15 - Why would a flare be observed in visible light,...Ch. 15 - How can the prominences, which are so big and...Ch. 15 - If you were concerned about space weather and...Ch. 15 - Suppose you live in northern Canada and an...Ch. 15 - The edge of the Sun doesn’t have to be absolutely...Ch. 15 - Show that the statement that 92% of the Sun’s...Ch. 15 - From Doppler shifts of the spectral lines in the...Ch. 15 - Assuming an average sunspot cycle of 11 years, how...Ch. 15 - This chapter gives the average sunspot cycle as 11...Ch. 15 - The escape velocity from any astronomical object...Ch. 15 - Suppose you observe a major solar flare while...Ch. 15 - Suppose an eruptive prominence rises at a speed of...Ch. 15 - From the information in Figure 15.21, estimate the...
Additional Science Textbook Solutions
Find more solutions based on key concepts
21.38 The two charges q1 and q2 shown in Fig. E21.38 have equal magnitudes. What is the direction of the net el...
University Physics with Modern Physics (14th Edition)
How can treating food with ionizing radiation help keep it from spoiling? UV is not very penetrating. What else...
College Physics
3. What is free-fall, and why does it make you weightless? Briefly describe why astronauts are weightless in th...
The Cosmic Perspective (8th Edition)
3. What is free-fall, and why does it make you weightless? Briefly describe why astronauts are weightless in th...
The Cosmic Perspective
Your 200-g cup of tea is boiling-hot. About how much ice should you add to bring it down to a comfortable sippi...
An Introduction to Thermal Physics
Figure 25.41 shows a portion of a circuit used to model muscle cells and neurons. All resistors have the same v...
Essential University Physics: Volume 2 (3rd Edition)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- Make a sketch of the Sun’s atmosphere showing the locations of the photosphere, chromosphere, and corona. What is the approximate temperature of each of these regions?arrow_forwardCompare and contrast the four different types of solar activity above the photosphere.arrow_forwardWhich aspects of the Sun’s activity cycle have a period of about 11 years? Which vary during intervals of about 22 years?arrow_forward
- During the Maunder minimum a. solar brightness dropped slightly b. the average surface temperature of the sun dropped c. few sunspots were observedarrow_forwardDescribe what the Sun would look like from Earth if the entire photosphere were the same temperature as a sunspot.arrow_forwardRank the layers of the Sun based on their average temperature, from hottest to coolest. A) Corona B) Radiative Zone C) Convection Zone D) Chromospere E) Core F) Photosphere Answer: Submit All Answers Last Answer: EADBCF Incorrect, ONE try left!!arrow_forward
- Give the following figure of the sun, label the features observed and describe some of the characteristics.arrow_forwardHow does energy makes its way from the nuclear core of the Sun to its atmosphere? Choose the correct order for each layer. → O radiative zone, convection zone, photosphere, chromosphere, transition region, corona O convection zone, radiative zone, chromosphere, photosphere, transition region, corona convection zone, radiative zone, photosphere, chromosphere, transition region, corona O radiative zone, convection zone, chromosphere, transition region, photosphere, corona O radiative zone, convection zone, chromosphere, photosphere, transition region, corona #m с d $ 4 e 30 f % 5 t g bo 6 M 7 & 7 h O u 8 9arrow_forwardthe last option is (Shock waves move through the photosphere.)arrow_forward
- What is the approximate temperature of the sun at its chromosphere ?arrow_forwardThe radius of the Sun is 0.7 million km. What percentage of the radius is taken up by the chromosphere? (Hint: Refer to Figure 8-1.)arrow_forwardStep-by-step, explain how energy flows from the center of the Sun to Earth.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- AstronomyPhysicsISBN:9781938168284Author:Andrew Fraknoi; David Morrison; Sidney C. WolffPublisher:OpenStaxFoundations of Astronomy (MindTap Course List)PhysicsISBN:9781337399920Author:Michael A. Seeds, Dana BackmanPublisher:Cengage LearningStars and Galaxies (MindTap Course List)PhysicsISBN:9781337399944Author:Michael A. SeedsPublisher:Cengage Learning
- Horizons: Exploring the Universe (MindTap Course ...PhysicsISBN:9781305960961Author:Michael A. Seeds, Dana BackmanPublisher:Cengage LearningAn Introduction to Physical SciencePhysicsISBN:9781305079137Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar TorresPublisher:Cengage Learning
![Text book image](https://www.bartleby.com/isbn_cover_images/9781938168284/9781938168284_smallCoverImage.gif)
Astronomy
Physics
ISBN:9781938168284
Author:Andrew Fraknoi; David Morrison; Sidney C. Wolff
Publisher:OpenStax
![Text book image](https://www.bartleby.com/isbn_cover_images/9781337399920/9781337399920_smallCoverImage.gif)
Foundations of Astronomy (MindTap Course List)
Physics
ISBN:9781337399920
Author:Michael A. Seeds, Dana Backman
Publisher:Cengage Learning
![Text book image](https://www.bartleby.com/isbn_cover_images/9781337399944/9781337399944_smallCoverImage.gif)
Stars and Galaxies (MindTap Course List)
Physics
ISBN:9781337399944
Author:Michael A. Seeds
Publisher:Cengage Learning
![Text book image](https://www.bartleby.com/isbn_cover_images/9781337672252/9781337672252_smallCoverImage.jpg)
![Text book image](https://www.bartleby.com/isbn_cover_images/9781305960961/9781305960961_smallCoverImage.gif)
Horizons: Exploring the Universe (MindTap Course ...
Physics
ISBN:9781305960961
Author:Michael A. Seeds, Dana Backman
Publisher:Cengage Learning
![Text book image](https://www.bartleby.com/isbn_cover_images/9781305079137/9781305079137_smallCoverImage.gif)
An Introduction to Physical Science
Physics
ISBN:9781305079137
Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres
Publisher:Cengage Learning