Chapter
1.8 Polarised light due to reflections
2.1 No light without shadow
2.3 Shadows formed by point sources
2.8 Shadows formed by clouds
2.9 Shadows under trees in leaf
3.1 Atmospheric refraction
3.5 Looming and unusual visual range
Chapter 4 SUNSET AND SUNRISE
4.8 The Sun at the horizon
5.1 Unweaving the rainbow
5.2 How to recognise a rainbow
5.6 Rainbows at sunset and sunrise
5.14 Searchlight rainbows
5.17 Explaining the rainbow
5.21 Notes for rainbow observers
Chapter 6 CORONAE AND GLORIES
6.2 Other situations in which coronae are seen
6.5 Notes for observers of coronae and glories
Chapter 7 ATMOSPHERIC HALOS
7.7 Circumzenithal and circumhorizontal arcs
7.11 Notes for ice halo observers
8.1 A brief history of the sky
8.5 The apparent motion of the Sun
8.6 Why is the sky dark at night?
8.7 The sky beyond the equator
9.2 The Earth–Moon system
9.3 Looking at the Moon without a telescope
9.5 The best time to look at the Moon
9.7 How bright is the Moon?
9.12 Sidereal and synodic months
9.13 Finding the Moon in the sky
9.14 Moonrise and moonset
10.3 Preparing to see an eclipse
10.4 Watching a solar eclipse
10.6 Explaining a solar eclipse
10.7 Eclipses of the Moon
11.2 How to tell a planet from a star
11.3 Inferior and superior planets
11.4 Where to look for an inferior planet
11.7 Where to look for a superior planet
11.8 Apparent changes in brightness of superior planets
12.2 Where are the stars?
12.5 Looking at stars through a telescope
12.6 Why do stars twinkle?
12.9 Why are stars star-shaped?
Chapter 13 COMETS AND METEORS
13.3 Artificial satellites
Appendix: Technical and practical advice for skygazing
1.1 The colour of the daytime sky
1.7 Polarised light from the sky
1.8 Polarised light due to reflections
2.1 No light without shadow
2.3 Shadows formed by point sources
2.8 Shadows formed by clouds
3.1 Atmospheric refraction
3.5 Looming and unusual visual range
Chapter 4: Sunset and sunrise
4.8 The Sun at the horizon
5.1 Unweaving the rainbow
5.2 How to recognise a rainbow
5.6 Rainbows at sunset and sunrise
5.17 Explaining the rainbow
5.21 Notes for rainbows observers
Chapter 6: Coronae and glories
6.5 Notes for observers of coronae and glories
Chapter 7: Atmospheric halos
7.7 Circumzenithal and circumhorizontal arcs
7.11 Notes for ice halo observers
8.1 A brief history of the sky
8.6 Why is the sky dark at night?
8.7 The sky beyond the equator
9.2 The Earth–Moon system
9.3 Looking at the Moon without a telescope
9.7 How bright is the Moon?
11.2 How to tell a planet from a star
11.4 Where to look for an inferior planet
11.7 Where to look for a superior planet
11.8 Apparent changes in brightness of superior planets
12.2 Where are the stars?
12.6 Why do stars twinkle?
12.9 Why are stars star-shaped?
Chapter 13: Comets and meteors
13.3 Artificial satellites
Appendix: Technical and practical advice for skygazing
Out of the Blue
：A 24-Hour Skywatcher's Guide
Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.