Practical Astronomy with your Calculator 3rd Edition

Description

Cover......Page 1 Half-title......Page 3 Title......Page 5 Copyright......Page 6 Contents......Page 7 Preface to the third edition......Page 11 About this book and how to use it......Page 13 Dedication......Page 16 1 Calendars......Page 17 2 The date of Easter......Page 18 3 Converting the date to the day number......Page 20 4 Julian day numbers......Page 22 5 Converting the Julian day number to the calendar date......Page 24 6 Finding the day of the week......Page 25 7 Converting hours, minutes and seconds to decimal hours......Page 26 8 Converting decimal hours to hours, minutes and seconds......Page 27 9 Converting the local time to UT......Page 28 10 Converting UT to local civil time......Page 31 11 Sidereal time (ST)......Page 32 12 Conversion of UT to GST......Page 33 13 Conversion of GST to UT......Page 34 14 Local sidereal time (LST)......Page 36 15 Converting LST to GST......Page 37 16 Ephemeris time (ET) and terrestrial dynamic time (TDT)......Page 38 Coordinate systems......Page 41 17 Horizon coordinates......Page 42 18 Equatorial coordinates......Page 43 19 Ecliptic coordinates......Page 46 20 Galactic coordinates......Page 48 22 Converting between angles expressed in degrees and angles expressed in hours......Page 49 23 Converting between one coordinate system and another......Page 50 24 Converting between right ascension and hour-angle......Page 51 25 Equatorial to horizon coordinate conversion......Page 52 26 Horizon to equatorial coordinate conversion......Page 54 27 Ecliptic to equatorial coordinate conversion......Page 56 28 Equatorial to ecliptic coordinate conversion......Page 58 29 Equatorial to galactic coordinate conversion......Page 59 30 Galactic to equatorial coordinate conversion......Page 60 31 Generalised coordinate transformations......Page 61 32 The angle between two celestial objects......Page 67 33 Rising and setting......Page 68 34 Precession......Page 72 35 Nutation......Page 76 36 Aberration......Page 78 37 Refraction......Page 80 38 Geocentric parallax and the figure of the Earth......Page 82 39 Calculating corrections for parallax......Page 85 40 Heliographic coordinates......Page 88 41 Carrington rotation numbers......Page 93 42 Selenographic coordinates......Page 94 43 Atmospheric extinction......Page 98 The Sun......Page 99 44 Orbits......Page 100 45 The apparent orbit of the Sun......Page 101 46 Calculating the position of the Sun......Page 102 47 Calculating orbits more precisely......Page 105 48 Calculating the Sun's distance and angular size......Page 108 49 Sunrise and sunset......Page 109 50 Twilight......Page 112 51 The equation of time......Page 114 52 Solar elongations......Page 116 The planets, comets and binary stars......Page 117 53 The planetary orbits......Page 118 54 Calculating the coordinates of a planet......Page 119 55 Finding the approximate positions of the planets......Page 127 56 Perturbations in a planet's orbit......Page 129 57 The distance, light-travel time and angular size of a planet......Page 132 58 The phases of the planets......Page 134 59 The position-angle of the bright limb......Page 135 60 The apparent brightness of a planet......Page 137 61 Comets......Page 139 62 Parabolic orbits......Page 146 63 Binary-star orbits......Page 149 The Moon and eclipses......Page 154 64 The Moon's orbit......Page 155 65 Calculating the Moon's position......Page 158 66 The Moon's hourly motions......Page 162 67 The phases of the Moon......Page 163 68 The position-angle of the Moon's bright limb......Page 165 69 The Moon's distance, angular size and horizontal parallax......Page 166 70 Moonrise and moonset......Page 167 71 Eclipses......Page 170 72 The 'rules' of eclipses......Page 172 73 Calculating a lunar eclipse......Page 173 74 Calculating a solar eclipse......Page 177 75 The Astronomical Calendar......Page 180 Glossary of terms......Page 183 Symbols and abbreviations......Page 191 Index......Page 194