Out of the Blue: A 24-Hour Skywatcher's GuideWhy is the sky blue and why are sunsets red? When can I see a rainbow? Why is the moon sometimes visible in daylight? In Out of the Blue skywatcher John Naylor offers practical advice about where and when you can expect to see natural phenomena, what you will see and how to improve your chances of seeing it. Naylor takes in both the night and the day sky, and deals only with what can be seen with the naked eye. Drawing on science, history, literature and mythology, and assuming only basic scientific knowledge, Out of the Blue is for everyone who enjoys being outdoors and who feel curious or puzzled about things optical and astronomical. John Naylor was born in England, but spent his childhood in Peru. A graduate of London University with a degree in philosophy, he teaches physics at a secondary school in London. |
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Page vi
... observers 125 6 Coronae and glories 127 6.1 Coronae 127 6.2 Other situations in which coronae are seen 130 6.3 Cloud iridescence 131 6.4 Glories 133 6.5 Notes for observers of coronae and glories 135 7 Atmospheric halos 136 7.1 Ice ...
... observers 125 6 Coronae and glories 127 6.1 Coronae 127 6.2 Other situations in which coronae are seen 130 6.3 Cloud iridescence 131 6.4 Glories 133 6.5 Notes for observers of coronae and glories 135 7 Atmospheric halos 136 7.1 Ice ...
Page vii
... observers 154 8 The night sky 157 8.1 A brief history of the sky 157 8.2 Naked - eye astronomy 161 8.3 The celestial sphere 163 8.4 The ecliptic 165 8.5 The apparent motion of the Sun 167 8.6 Why is the sky dark at night ? 169 8.7 The ...
... observers 154 8 The night sky 157 8.1 A brief history of the sky 157 8.2 Naked - eye astronomy 161 8.3 The celestial sphere 163 8.4 The ecliptic 165 8.5 The apparent motion of the Sun 167 8.6 Why is the sky dark at night ? 169 8.7 The ...
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airlight angle antisolar point appears approximately astronomers atmosphere band binoculars blue brighter brightest brightness celestial equator celestial sphere centre Circumzenithal arc cloud colour comet corona crepuscular rays crescent dark daylight diagram diameter direction distance drops Earth Earth's surface eastern horizon edge faint Figure fog bow formed full Moon ground haze heiligenschein hemisphere illuminated inferior mirage inferior planet known less libration look lunar lunation magnitude Mare Mare Crisium meteor meteoroid Moon rises Moon's surface motion moves naked eye night sky notice object observer occur optical orbit the Sun parhelic circle particles penumbra phase phenomena Photo John Naylor Photo Pekka Parviainen photograph polarised light polarising filter primary bow rain rainbow rainbow ray reflected refraction scattered secondary bow seen shower Solar System stars Subsun Sun's disc sunlight sunrise sunset superior mirage superior planet telescope totality twilight umbra Venus visible wavelengths zodiacal light