nearest star the surprising science of our sun

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Nearest Star

Author : Leon Golub
ISBN : 9781107052659
Genre : Science
File Size : 76. 58 MB
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An authoritative and readable introduction to the Sun, our nearest star, from two experienced astronomers, for general science readers.

How To Observe The Sun Safely

Author : Lee Macdonald
ISBN : 9781461438250
Genre : Science
File Size : 72. 98 MB
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"How to Observe the Sun Safely, 2nd Edition" gives all the basic information and advice the amateur astronomer needs to get started in observing our own ever-fascinating star. Unlike many other astronomical objects, you do not need a large telescope or expensive equipment to observe the Sun. And it is possible to take excellent pictures of the Sun with today's low-cost digital cameras! This title concentrates on providing practical, on-the-spot advice to the amateur astronomer who is interested in observing the Sun, using commercially available equipment. This book surveys what is visible on the Sun, before describing how to record solar features and measure solar activity levels. There is also an account of how to use H-alpha and Calcium-K filters to observe and record prominences and other features of the solar chromosphere, the Sun's inner atmosphere. Because we are just entering a period of high activity on the Sun, following a long, quiet period, many more amateur astronomers will become interested in observing it. The second edition includes an update of Chapter 2 to reflect advances in solar observing equipment since 2002, and a section on building a solar projection box, originally included in the main body of this chapter has been moved to Appendix A. Also Chapter 6 thru 8 have been completely revised to give amateur astronomers advice on how to use film to photograph the Sun, and how to use digital cameras. This new edition also includes more than twice as many illustrations as the first and almost half of them new images.

Our Sun

Author : Christopher Cooper
ISBN : 9781627880763
Genre : Science
File Size : 20. 33 MB
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Our sun is one star among 50 billion in the galaxy. Our galaxy is only one among 50 billion in the universe. With a vastness this incomprehensible, it is easy to feel like we are mere specks of sand on an endless shore. But our sun is special. Though roughly 150 million kilometers separate us, we could not be more connected. Literally, everything you see comes from the sun. The words you are reading now are really photons that left the sun about 8 minutes ago only to bounce off this page and into your eyes. We owe our very existence to our sun. It provides just enough heat to keep our fragile bodies from freezing to ice or burning to a crisp. Every bite of food we eat we owe to the sun, whose energy is converted into plants that provide sustenance for everything up the food chain. DIV /divDIVWe have understood the sun’s importance for millennia. The earliest humans, awestruck by its blazing splendor, left drawings of the sun on cave walls. Nearly every civilization, no matter where it sprang up on the planet, has revered the sun. Myths about the sun were the basis of the earliest deities of ancient Sumerian, Hindu, Egyptian, Chinese, and Meso-American cultures. Before Apollo, the ancient Greeks worshiped the sun-god Ares. Before Zeus, the ancient Romans worshiped Sol./divDIV /divDIVThroughout our history, the sun has been central to humanity’s quest for meaning in the universe. But our history has been a brief moment in our sun’s 4.5 billion year life. Only recently, through advances in science and technology, have we begun to understand our sun - where it came from, how it functions, how it affects our lives and how it eventually will destroy our planet./divDIV /divDIVOur Sun is a comprehensive, easy-to-understand guide to everything we know about our closest star. Illustrated with stunning pictures from NASA’s newly-launched Solar Dynamics Observatory, Our Sun will reveal the science behind the sun, trace its impact on human history, and reveal its growing importance to our future way of life./div

The Complete Idiot S Guide To The Sun

Author : Jay M. Pasachoff
ISBN : 1592570747
Genre : Nature
File Size : 68. 95 MB
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Now skywatchers and armchair scientists can learn all about the origin and history of the sun, with information on the sun's physical properties and early astronomers' discoveries, including those by Galileo, Copernicus, Francis Bailey, and the Mayans.

Observing The Sun

Author : Jamey L. Jenkins
ISBN : 9781461480150
Genre : Science
File Size : 86. 64 MB
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""Observing the Sun"" is for amateur astronomers at all three levels: beginning, intermediate, and advanced. The beginning observer is often trying to find a niche or define a specific interest in his hobby, and the content of this book will spark that interest in solar observing because of the focus on the dynamics of the Sun. Intermediate and advanced observers will find the book invaluable in identifying features (through photos, charts, diagrams) in a logical, orderly fashion and then guiding the observer to interpret the observations. Because the Sun is a dynamic celestial body in constan.

The Sun

Author : Leon Golub
ISBN : 9781780238029
Genre : Science
File Size : 70. 49 MB
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It’s a good story: we are made of matter like that we also find in the stars. Essential to our planet’s existence, the Sun—our nearest star––is also the most fascinating object humans have ever adored, literally the difference between day and night. But getting beyond these basic perceptions requires scientific understanding. What, for instance, is the sun made of? Why does it burn so brightly? How long will it last? This book not only answers these questions but also tells the story of how we came to know—not merely behold—the grandest entity in our sky. Leon Golub and Jay M. Pasachoff offer an engaging and informative account of solar science and its history, drawing on centuries of study by solar astronomers who have looked to the Sun not only to learn about our own solar system but also about what lies in the distant wilderness of faintly glimmering stars. They skim along the surface of the Sun, which is decorated with sunspots, discussing these fascinating magnetic aberrations and the roughly eleven-year cycles they abide. They follow seismic waves into the interior of the Sun and its unending nuclear fusion. They show us what is unveiled in solar eclipses and what new views and knowledge our space exploration has afforded us. They brave solar weather, and they trace the arcs of radiation and particles whose effects we can see on earth in phenomena such as the northern and southern lights. Glowing with a wide assortment of astonishing images, this beautifully illustrated guide will delight everyone, from those who know what a coronagraph is to those who simply like to step out on a bright day, close their eyes, and feel the Sun’s warmth upon their skin.

The Sun

Author : Stephen Feinstein
ISBN : 0766053059
Genre : Juvenile Nonfiction
File Size : 79. 63 MB
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Describes the composition, surface features, and exploration of the sun, as well as its place in the solar system.

Physics Of The Sun

Author : Dermott J. Mullan
ISBN : 9781420083088
Genre : Science
File Size : 57. 29 MB
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With an emphasis on numerical modeling, Physics of the Sun: A First Course presents a quantitative examination of the physical structure of the Sun and the conditions of its extended atmosphere. It gives step-by-step instructions for calculating the numerical values of various physical quantities. The text covers a wide range of topics on the Sun and stellar astrophysics, including the structure of the Sun, solar radiation, the solar atmosphere, and Sun-space interactions. It explores how the physical conditions in the visible surface of the Sun are determined by the opacity of the material in the atmosphere. It also presents the empirical properties of convection in the Sun and discusses how the physical parameters increase with depth through the convection zone. The author shows how certain types of "real stars" are actually polytropes and offers a simplified version of oscillation equations to highlight the properties of p- and g-modes in the Sun. He also focuses on the initial temperature rise into the chromosphere, why the temperature in the quiet corona has the value it does, and how the physics of magnetic fields help us to understand various striking phenomena that are observed on the Sun. This text enables a practical appreciation of the physical models of solar processes. Through the included numerical modeling problems, it encourages a firm grasp of the numerical values of actual physical parameters as a function of radial location in the Sun.

The Sun S Heartbeat

Author : Bob Berman
ISBN : 0316175390
Genre : Science
File Size : 54. 28 MB
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The beating heart of the sun is the very pulse of life on earth. And from the ancients who plotted its path at Stonehenge to the modern scientists who unraveled the nuclear fusion reaction that turns mass into energy, humankind has sought to solve its mysteries. In this lively biography of the sun, Bob Berman ranges from its stellar birth to its spectacular future death with a focus on the wondrous and enthralling, and on the heartbreaking sacrifice, laughable errors, egotistical battles, and brilliant inspirations of the people who have tried to understand its power. What, exactly, are the ghostly streaks of light astronauts see-but can't photograph-when they're in space? And why is it impossible for two people to see the exact same rainbow? Why are scientists beginning to think that the sun is safer than sunscreen? And how does the fluctuation of sunspots-and its heartbeat-affect everything from satellite communications to wheat production across the globe? Peppered with mind-blowing facts and memorable anecdotes about spectral curiosities-the recently-discovered "second sun" that lurks beneath the solar surface, the eerie majesty of a total solar eclipse-THE SUN'S HEARTBEAT offers a robust and entertaining narrative of how the Sun has shaped humanity and our understanding of the universe around us.

Mercury

Author :
ISBN : UCSD:31822023017171
Genre : Astronomy
File Size : 79. 31 MB
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