Explorations: Introduction to Astronomy (Arny), 6th Edition

Chapter 12: The Sun, Our Star

Questions for Review

1
How big is the Sun compared to the Earth?
2
How can we measure the Sun's size, mass, and temperature?
3
What is the Sun made of? How do we know this?
4
What holds the Sun together?
5
Why doesn't the Sun collapse?
6
Why must the interior of the Sun be so hot?
7
How is solar energy generated?
8
How does energy get to the Sun's surface from its core?
9
What visible evidence do we have that the Sun has a convection zone?
10
What are the photosphere, chromosphere, and corona?
11
Which of these layers is hottest? How do we know this?
12
What is meant by solar activity?
13
Why do sunspots appear dark?
14
How do a prominence and a flare differ?
15
What role does magnetic activity play in solar activity?
16
How do we know there are magnetic fields in the Sun?
17
What is meant by solar neutrinos? Why do astronomers say there is a discrepancy? Why is the discrepancy of interest?
18
What is solar seismology? What does it tell us about the Sun?
19
What is the solar cycle?
20
What is the period between maximum sunspot numbers? How does this differ from the period of the full solar cycle?
21
What is the Maunder minimum? Why is it of interest?
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