The Ever-Changing Sky provides a comprehensive and n-mathematical guide to spherical astromy. 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 trigometry. 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 phemena (including rainbows and haloes). This text will be invaluable to students taking courses in naked-eye astromy, amateur and professional astromers, as well as more general readers wanting to kw how the night sky changes.
James B. Kaler is Professor of Astronomy at the University of Illinois where his research centres on dying stars. Professor Kaler has held Fulbright and Guggenheim Fellowships, and has been awarded medals for his work from the University of Liege in Belgium and the University of Mexico. As well as having published more than 100 research articles, he has written for a variety of popular and semi-popular magazines including Mercury, Astronomy, Stardate, Sky and Telescope, Scientific American, and l'Astronomia in Italy, and appears regularly on Illinois television and radio. His popular book, Stars, was published by Scientific American Library in 1992, and a new elementary astronomy textbook, Astronomy!, was published in 1994 by HarperCollins. Professor Kaler was also a consultant for Time-Life Books on their Voyage Through the Universe series. He is past president of the Board of the Champaign-Urbana Symphony.