Preface Acknowledgements Author biography 1 Introduction 1．1A brief survey of celestial objects and a sense of scale 1．2 The size of objects in the Solar System 1．3 Objects beyond the Solar System 1．4 Distances of celestial objects 2 The celestial sphere and apparent motion of the Sun 2．1 The celestial sphere 2．2 The annual motion of the Sun 2．3 The Sun's analemma 2．4 The motion of the sunrise and sunset points 2．5 The motion of the celestial poles 3 Coordinate systems 3．1 The equatorial coordinate system 3．2 The hour angle 3．3 The altitude——azimuth coordinate system 3．4 The local paths of stars 3．5 Which stars can be seen from a given location? 3．6 When can a star be seen in the night sky? 3．7 The ecliptic coordinate system 3．8 Resources 4 The motion and phases of the Moon 4．1 The phases of the Moon 4．2 The diurnal motion of the Moon 4．3 East and west elongation 4．4 Features of the Moon 4．5 The Moon's orbital path 4．6 Eclipses 4．6．1 Lunar eclipses 4．6．2 Solar eclipses 4．7 The sidereal and synodic periods of the Moon 4．8 The apparent size of the Moon 4．9 The ocean tides 4．10 Resources …… 5 The planets 6 Comets， meteoroids and meteor showers 7 Constellations， asterisms and star names 8 Star properties 9 Telescopes Appendices
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