Читать книгу Exploring the Solar System - Peter Bond - Страница 64

 In what ways does the Sun influence its planetary system?

 The Sun has been in existence for 4.5 billion years. How is such longevity possible?

 Name the internal layers of the Sun. Describe the main characteristics of each layer.

 Why was the extremely high temperature of the corona so unexpected? How might this temperature be accounted for?

 Briefly describe and explain: (a) solar flares; (b) coronal mass ejections; (c) sunspots; (d) spicules; (e) prominences; (f) solar eclipses.

 What is the solar cycle? Suggest reasons for the changes that occur during this cycle.

 Explain why most of the recent advances in solar science have been made by observatories in space, rather than ground‐based observatories.

 Why will the Sun undergo major changes some 6–7 billion years from now? How will these changes affect Earth and the other planets?