James B. Kaler – författare

The point of this book is to provide a brief, easy-to-read but comprehensive overview of stars: where they came from; what they are made of; what will happen to them, and what they mean to us from a scientific, aesthetic and cultural point of view. The book will focus on stars and astronomy, and will keep technical physics to a minimum.

While there are guides to the visible sky, this is the first book to encompass the most important stars known in the universe at a level accessible to the layperson. The noted astronomer James Kaler takes us on a tour of the 100 most interesting stars, describing their characteristics and importance in words and vivid pictures. James B. Kaler is an internationally recognized expert on stars and their formation. A professor of astronomy at the University of Illinois, he is the author of "Stars and Their Spectra" (Cambridge), "Stars" (Freeman/Scientific American Library), "Cosmic Clouds" (Freeman/Scientific American Library), and numerous articles for popular and professional astronomy magazines.

Over the past 200 years, our knowledge of stars has expanded enormously. From seeing myriad dots of different brightnesses, we moved on to measure distances, temperatures, sizes, chemical compositions, even ages, finding stars that dwarf our Sun and are dwarfed by it, some in their youth, others ancient. First published in 2001, Extreme Stars describes the lives of stars from a fascinating perspective. It examines their amazing extremes and results in an engaging overview of stellar evolution, suitable for anyone interested in viewing or studying stars. Ten chapters, generously illustrated throughout, explain the natures of the brightest, the largest, the hottest, the youngest, and so on, ending with a selection of the strangest stars the Universe has to offer. Taken as a whole, the chapters show how stars develop and die and how each extreme turns into another under the inexorable twin forces of time and gravity.

The Ever-Changing Sky provides a comprehensive and non-mathematical guide to spherical astronomy. The reader is guided through terrestrial and celestial co-ordinate systems, time measurement and celestial navigation, to the prediction of the rising and setting of the stars, Sun and Moon. It focuses on the geometrical aspects of the night sky without using complex trigonometry. The book progresses to a general study of the Earth and sky, including the stars and constellations (with useful star maps provided), the motions and appearance of the Moon, tides and eclipses, the orbits of the planets and the smaller bodies of the Solar System (asteroids, meteors, meteorites and comets). Finally, there is a brief overview of atmospheric phenomena (including rainbows and haloes). This text will be invaluable to students taking courses in naked-eye astronomy, amateur and professional astronomers, as well as more general readers wanting to know how the night sky changes.

Did you know that as you read these words showers of high-speed particles from exploding stars are raining down on you? As you gaze into the starry sky, you might feel isolated from the Universe around you--but you're not. This book reveals the startling ways life on Earth is touched by our cosmic environment, and demonstrates why without such contact, life itself wouldn't be possible. Heaven's Touch embarks on an unforgettable journey across the cosmos, beginning in near space with a look at the gentle ebb and flow of lunar and solar tides. Acclaimed astronomer James Kaler describes their subtle effects on our world and also explores the Sun's more potent influences, such as solar storms that cause auroras, give comets their tails, and knock out power grids on Earth. He ventures across the Solar System to consider how the planets can act to produce climate change, even global disaster. Kaler shows how Jupiter's gravity can throw asteroids toward potentially devastating collision with Earth, and how even our whole Galaxy might hurl comet storms at us.He then takes us into deepest space to describe the cosmic rays launched at us from exploding stars, and considers not just how these exploders might harm us, but how they also join together in the creation of stars and how they serve to populate the Universe with the very building blocks of life. Informative and entertaining, Heaven's Touch reveals how intimately connected we really are with the dynamic Universe in which we live.

A breathtaking account of how the surrounding cosmos impacts life on EarthDid you know that as you read these words showers of high-speed particles from exploding stars are raining down on you? As you gaze into the starry sky, you might feel isolated from the Universe around you—but you're not. This book reveals the startling ways life on Earth is touched by our cosmic environment, and demonstrates why without such contact, life itself wouldn't be possible.Heaven's Touch embarks on an unforgettable journey across the cosmos, beginning in near space with a look at the gentle ebb and flow of lunar and solar tides. Acclaimed astronomer James Kaler describes their subtle effects on our world and also explores the Sun's more potent influences, such as solar storms that cause auroras, give comets their tails, and knock out power grids on Earth. He ventures across the Solar System to consider how the planets can act to produce climate change, even global disaster. Kaler shows how Jupiter's gravity can throw asteroids toward potentially devastating collision with Earth, and how even our whole Galaxy might hurl comet storms at us. He then takes us into deepest space to describe the cosmic rays launched at us from exploding stars, and considers not just how these exploders might harm us, but how they also join together in the creation of stars and how they serve to populate the Universe with the very building blocks of life.Informative and entertaining, Heaven's Touch reveals how intimately connected we really are with the dynamic Universe in which we live.

The Little Book of Stars tells the story of stellar science and what the stars mean to us from a variety of perspectives. Beginning with the "big picture;' the book moves through progressively more and more intimate views until we feel we can hold the stars in our hands, from which we can then throw them back to the sky to see our place among them. The book opens with a summary of the event that created our Universe, the Big Bang, and then goes on to describe the natures of the Big Bang's progeny, the stars-what they are, how they shine, and how they can live such immensely long lives. Approaching horne, it next examines the measures of the stars: where they are, how they are collected together from pairs to galaxies of billions, and how we learn of their individual properties. Yet closer, we look in depth at the Sun and at the physical differences among the stars, at the immense range of properties they possess. Finally, arriving at Earth, we see the signif­ icance of the stars to human life, how we have used them to tell our stories and to find where we are in both space and time. v From this base, the book looks more closely at stellar details, concentrating on temporal phenomena-on stellar change-and on the observational base that helps set the stage for the theory that links them all together.

The book begins at the Sun then travels through the solar system to see the stars, how they work, and ultimately what they mean to us. The idea is to provide an integrated view of the galaxy and its contents. Along the way we look at spectra, atmospheric phenomena, gravity and the laws of motion, telescopes and how they work, interstellar gas and dust, star birth and death, and planets orbiting other stars. Most popular books tend to focus on one particular topic. From the Sun to the Stars is one of the few that tells the story of the Sun against the background of other stars and other planets and, for that matter, of stars and other planets against the background of the Sun and solar system. This presents the subject with a breadth that few other books can match.This book grew out of the OLLI (Osher Lifelong Learning Institute) lectures given by the author at the University of Illinois. It doesn't require any prior knowledge and is suitable for anyone who is interested in astronomy.

The book begins at the Sun then travels through the solar system to see the stars, how they work, and ultimately what they mean to us. The idea is to provide an integrated view of the galaxy and its contents. Along the way we look at spectra, atmospheric phenomena, gravity and the laws of motion, telescopes and how they work, interstellar gas and dust, star birth and death, and planets orbiting other stars. Most popular books tend to focus on one particular topic. From the Sun to the Stars is one of the few that tells the story of the Sun against the background of other stars and other planets and, for that matter, of stars and other planets against the background of the Sun and solar system. This presents the subject with a breadth that few other books can match.This book grew out of the OLLI (Osher Lifelong Learning Institute) lectures given by the author at the University of Illinois. It doesn't require any prior knowledge and is suitable for anyone who is interested in astronomy.